Intellectual Property

Today, Chang Tsi & Partners consistently recognized as one of the premier IP firms. Our firm's attorneys are distinguished by their wealth of experience and success assisting leading international and domestic corporations with IP prosecution and enforcement in China and around the world.

Intellectual Property

We are proud of our outstanding reputation and service, which is marked by our professional and efficient work, and successful results. We strive to provide comprehensive, one-stop, and multi-leveled legal services for our clients.

Comprehensive

Our intellectual property practice includes trademarks, patents, copyrights (including software), domain names, trade secrets, product packaging and decoration, management and transfer of intellectual property rights, unfair competition, consumer rights, advertising, and related services.

One-Stop

We are a leading IP law firm with both trademark and patent expertise, and our highly experienced and professional attorneys work in teams to provide our clients with the most comprehensive and sophisticated advice. Whenever our domestic and foreign clients face a difficult intellectual property issue of any kind, they can depend on Chang Tsi & Partners to come up with effective solution and provide the best legal services.

Multi-Leveled

Our firm provides comprehensive prosecution and enforcement services to domestic and international clients, including market surveillance, business investigations, administrative actions, customs enforcement, infringement litigation, and corporate intellectual property strategy development, adding value to brand designs, trademark licensing, and intellectual property due diligence.

Representative Cases

 

  1. MICHAEL KORS v.s. Shantou Chenghai Jianfa Handbag Craft Factory [“Deal of the year”&“The Top Ten Intellectual Property Case with Research Value”&“Representative Case of the Year” recommended by the Supreme Court, Zhejiang High Court and Hangzhou Intermediate Court]
  2. Ambitmicro Technology Limited. v. Ambiq Micro,Inc. and Fujitsu Semiconductor (Shanghai) Co., Ltd. ["2019 Top 10 IP Cases" by Shanghai People's Court]
  3. Dongfang Xianglin v.s. Shenzhen Pagoda Orchard [2019 Top 10 Representative IP Cases]
  4. Chen’s sales of sanitary products with a “TOTO” counterfeit trademark [2019 Top 10 Representative IP Cases]
  5. BOE Technology Group Co,Ltd. & Beijing Orient Vacuum Electric Co, Ltd. Suing Wenzhou BOE Vacuum Electric Co, Ltd. Unfair Competition ["2019 Top 10 IP Administrative Protection Cases" by Ningbo People's Court]
  6. Trademark Protection Project Regarding Request for Declaration of Trademark Invalidation for "Weixin (Wechat) " [2019 Top 10 Trademark Application Cases]
  7. Trademark Protection Project Regarding Request for Declaration of Trademark Invalidation for "Yi Kou Lian" [2019 Top 10 Trademark Application Cases]
  8. Administrative Lawsuit between IDEAL LIFE INC. and CNIPA on the Request for Declaration of Trademark Invalidation for “完美生活IDEAL LIFE”[2019 Top 10 Trademark Application Cases]
  9. Guinness World Records v. Chery Automobile: Trademark Infringement and Unfair Competition ["2017 Deal of the Year" by Chinese Business Law Journal & "2018 Top 10 IP Protection Cases" by Ningbo People's Court]
  10. Under Armour v. Fujian Tingfeilong [2018 Outstanding Trademark Cases, reported by New York Times, Wall Street Journal, Law360, etc.]
  11. LEVI STRAUSS & Co. vs. Guangzhou City Yixuan Apparel Co., Ltd. and Liu Zuofu ["Outstanding Cases" by Guangzhou IP Court]
  12. Infringement of Tupperware’s Trademark [2017 Top 10 Representative IP cases of Procuratorates in China]
  13. Administrative Dispute over the Request for Declaration of Invalidation of the Trademark “蒂凡尼”(Tiffany) [Representative Cases against Malicious Trademark Registration]
  14. Trademark Infringement Case on behalf of Six Continents Hotel  ["2015 Deal of the Year" by Chinese Business Law Journal]
  15. BorgWarner v.s. Counterfeit Manufacturers [Top 10 Representative Cases in Shandong Province]
  16. Comprehensive Trademark Protection Work for the Tang Brand of Drinks ["2014 Deal of the Year" by Chinese Business Law Journal]
  17. Air China IP Protection Cases ["2010 Deal of the Year" by Chinese Business Law Journal]
  18. Represented Midea to file an Invalidation against Invention of a Two-stage Dust and Gas Separation Structure
  19. Premark FEG LLC vs. Shanghai Veetsan Commercial Machine Co., Ltd (Comprehensive Infringement)
  20. Zhongyuan Applied Tech Research & Development Co., Ltd v.s. PetroChina
  21. Signode Industrial Group LLC. v.s. Qingdao Yateli & Hefei Hanjie
  22. SKECHERS Patent Protection Cases
  23. Shenyang Longji v.s. Shijiazhuang Jinken regarding Utility Model Patent Infringement
  24. Newell Patent Protection Project
  25. Clearwater Seafoods v.s. Guangdong Doumen Seafood Import & Export Co., Ltd.
  26. Yilong Network Information Technology (Beijing) Co., Ltd. v.s. Beijing Aitexin Information Technology Co., Ltd. 
  27. Dalian Shengya Tourism Holdings Co., Ltd. v.s. Gansu Jianrong Cultural Tourism Development Co., Ltd.
  28. The Learning Journey International, LLC v.s. Guangzhou S-Up Kids Co., Ltd. & Cai Zekai
  29. The dispute over the authorship of the drama "Xibaipo"
  30. Chang Tsi & Partners represented American Institute of Certified Public Accounts (AICPA) to settle a dispute over copyright infringement against Douban.com
  31. Conocophillips v.s. Guangzhou Kangfei Regarding Unfair Competition
  32. Carlisle Fluid Technologies, Inc. v.s. Xianju County Tewei Pneumatic Tools, Co., Ltd. and Its Affiliated Companies
  33. DEMATIC International Trading (Shanghai) Co., Ltd. v.s. Guangzhou Dematic Packaging System Co., Ltd.
  34. Graco Inc. v.s. Shanghai Sanqi Co.
  35. Guinness World Records v. Chery Automobile: Trademark Infringement and Unfair Competition (Second Instance)
  36. Intercontinental Great Brand LLC v.s. Dongguan Changshunli Foods Co., Ltd. and Guangdong Changshun Jiezhou Foods Co., Ltd. Regarding Unfair Competition Dispute
  37. Cadbury v.s. Yi Kou Lian & Beijing Hui Fu Yuan Regarding Trademark and Unfair Competition Dispute
  38. LEVI'S Trademark Protection Project
  39. Well-known Trademark Recognition for Skechers
  40. Well-known Trademark Recognition for DQ
  41. Represented Siemens Ltd. (China), Chang Tsi & Partners assisted the public security authorities to crack a criminal case concerning sales and counterfeit of industrial automation products
  42. Represented Hanesbrands Inc. to hold infringing products in customs detention
  43. ToTo Trademark Protection Project
  44. Body Glove International, LLC v.s. Xubin Shi regarding Administrative Protection and Trademark Dispute Solutions

Trademark

Trademark law is a key practice area of our firm. Chang Tsi is known for its efficient work style and rich foreign agency experience in this field. Our lawyers and trademark agents are able to deal with any kind of complicated trademark matter whether it involves enforcement, market protection, commercial transactions, adding values to brand, etc.

Our services include:

  1. Strategy development for overall trademark protection, prosecution and enforcement
  2. Worldwide trademark rights verification and maintenance, trademark protection planning and global registration services
  3. Trademark searches and monitoring
  4. Trademark prosecution at home and abroad
  5. Handling trademark oppositions, reviews, disputes and cancellation proceedings
  6. Filing appeals against administrative decisions
  7. Renewing trademark applications and recording changes of address
  8. Recording trademark registrations at Chinese customs, and training customs officials on how to identify genuine and counterfeit products
  9. Conducting trademark infringement investigations and evidence collection
  10. Handling trademark administrative actions (including AIC, quality inspection, public security, customs), including raids of manufacturers and vendors of counterfeit products
  11. Handling trademark infringement litigation and assisting on criminal prosecution cases
  12. Drafting, revising, and reviewing trademark related agreements, including trademark assignments, and licenses
  13. Intellectual property due diligence in business transactions such as investments, mergers and acquisitions
  14. Trademark licensing and franchise strategy

Representative Cases

  1. MICHAEL KORS v.s. Shantou Chenghai Jianfa Handbag Craft Factory [“Deal of the year”&“The Top Ten Intellectual Property Case with Research Value”&“Representative Case of the Year” recommended by the Supreme Court, Zhejiang High Court and Hangzhou Intermediate Court]
  2. Ambitmicro Technology Limited. v. Ambiq Micro,Inc. and Fujitsu Semiconductor (Shanghai) Co., Ltd. ["2019 Top 10 IP Cases" by Shanghai People's Court]
  3. Dongfang Xianglin v.s. Shenzhen Pagoda Orchard [2019 Top 10 Representative IP Cases]
  4. Chen’s sales of sanitary products with a “TOTO” counterfeit trademark [2019 Top 10 Representative IP Cases]
  5. Trademark Protection Project Regarding Request for Declaration of Trademark Invalidation for "Weixin (Wechat) " [2019 Top 10 Trademark Application Cases]
  6. Trademark Protection Project Regarding Request for Declaration of Trademark Invalidation for "Yi Kou Lian" [2019 Top 10 Trademark Application Cases]
  7. Administrative Lawsuit between IDEAL LIFE INC. and CNIPA on the Request for Declaration of Trademark Invalidation for “完美生活IDEAL LIFE”[2019 Top 10 Trademark Application Cases]
  8. Under Armour v. Fujian Tingfeilong [2018 Outstanding Trademark Cases, reported by New York Times, Wall Street Journal, Law360, etc.]
  9. Guinness World Records v. Chery Automobile: Trademark Infringement and Unfair Competition ["2017 Deal of the Year" by Chinese Business Law Journal]
  10. LEVI STRAUSS & Co. vs. Guangzhou City Yixuan Apparel Co., Ltd. and Liu Zuofu ["Outstanding Cases" by Guangzhou IP Court]
  11. Infringement of Tupperware’s Trademark [2017 Top 10 Representative IP cases of Procuratorates in China]
  12. Administrative Dispute over the Request for Declaration of Invalidation of the Trademark “蒂凡尼”(Tiffany) [Representative Cases against Malicious Trademark Registration]
  13. Trademark Infringement Case on behalf of Six Continents Hotel  ["2015 Deal of the Year" by Chinese Business Law Journal]
  14. BorgWarner v.s. Counterfeit Manufacturers [Top 10 Representative Cases in Shandong Province]
  15. Comprehensive Trademark Protection Work for the Tang Brand of Drinks ["2014 Deal of the Year" by Chinese Business Law Journal]
  16. Air China IP Protection Cases ["2010 Deal of the Year" by Chinese Business Law Journal]
  17. Well-known Trademark Recognition for DQ
  18. Well-known Trademark Recognition for LEGO
  19. Well-known Trademark Recognition for Kohler Co.
  20. Well-known Trademark Recognition for Cadbury
  21. Well-known Trademark Recognition for Skechers
  22. ConocoPhillips Trademark Infringement Case
  23. LEVI STRAUSS & CO. v.s. Zhuang Ruyin & Guangzhou City Xin Fan Cai Trading Company
  24. Skechers v.s. Spieth & Wensky Regarding the Trademark “S” Infringement Case
  25. 3M v.s. Deli regarding dispute of infringement of POST-IT trademark
  26. Guinness World Records v.s. Chery Automobile and Anhui Chery Automobile Sales Company Regarding Trademark Infringement and Unfair Competition 
  27. Carlisle Fluid Technologies, Inc. v.s. Xianju County Tewei Pneumatic Tools, Co., Ltd. and Its Affiliated Companies
  28. Draper Fisher Jurvetson (DFJ) v.s. Jingdong Qu Regarding Trademark Infringement and Unfair Competition
  29. Intercontinental Great Brand LLC v.s. Anhui Tongmai Foods Co., Ltd. for trademark infringement
  30. Encyclopedia Britannica Trademark Protection Project
  31. DEUX LUX Trademark Protection Project
  32. Kraft Foods Inc. Trademark Protection Case
  33. Retrial of Administrative Dispute Over Trademark Objection Review Regarding You Shi Tie (优事贴)
  34. Kohler Co. Trademark Protection Case
  35. DQ v.s. Guangzhou Kaimei Regarding Trademark Infringement
  36. Cadbury v.s. Yi Kou Lian & Beijing Hui Fu Yuan Regarding Trademark and Unfair Competition Dispute
  37. DQ v.s. Suzhou Xuerun (Trademark Protection Case)
  38. Guinness World Records v.s. Guangzhou Daming Lianhe Regarding Trademark Infringement
  39. Lei Yun Shang v.s. Shanghai Yujintang (Trademark Protection Case)
  40. Graco Trademark Protection Case
  41. Carlisle Fluid Technology Trademark Protection Case
  42. ConocoPhillips Trademark Protection Case
  43. Well-known Trademark Recognition for Honeywell
  44. Shenzhen Xinba Technology Co., Ltd. V.S. Shantou Xinyu Industry Co., Ltd.
  45. Air Miles International Trading B.V. v.s.. AIR CHINA LIMITED in Canada’s Federal Court

Patent

Patent service is one of core services in Chang Tsi & Partners. As the “Top-Tier Intellectual Property Firm in Asia Pacific” and “Best Intellectual Property Firm in China” appraised by a host of authoritative legal rating agencies such as Chambers Asia Pacific and China Law & Practice, Chang Tsi & Partners provides patent legal services in the core service fields and wins a wide recognition in industry. Chang Tsi & Partners has been consecutively appraised as Leading Patent Law Firm by Managing IP (Patent) since 2014, has been listed as “Highly Recommended Patent Law Firm in China” for 4 consecutive years by IAM Patent 1000 in the list of top worldwide patent agencies, and is also appraised as “Outstanding Patent and Trademark Law Firm in China” by Managing IP.

Globally-oriented Chang Tsi & Partners approaches intellectual property from a resolutely commercial perspective and utilizes sophisticated client and file management systems to ensure a seamless customer experience. Domestic and international patrons receive a dedicated service from three specialist teams – electrical, mechanical and biochemistry – and are never left in the dark as to the progress of prosecution or litigation efforts. The squad practices in English, Chinese and Japanese – a further draw for global players.

Chang Tsi & Partners boasts exceptionally excellent Chinese patent professionals, and most of them have science or engineering and law academic background. Over one third of practitioners have the qualifications of practicing lawyers and patent attorneys in China, and one fourth of practitioners have received education in other countries and are holders of patent agency qualifications in the United States and other countries. The patent attorneys in Chang Tsi & Partners not only have expertise in patent laws of China, the United States, Japan, and European countries, but also are proficient in languages such as English, Japanese and German. Our patent team consists of litigation lawyers who have many years’ litigation experience and former senior judges and patent examiners who have the experience in court IP trial and worked in the Patent Reexamination Board under the SIPO, as well as experts who are both lawyers and scholars. With a goal of maximizing the clients’ interests in light of clients’ needs, we are capable of proposing strategic, professional and innovative solutions to complicated legal issues and providing comprehensive, multilayered and one-stop legal services to clients.

Our competitive strengths:


Philosophy and practicing objective of maximizing clients’ interests

Team of professional interdisciplinary talents
Institution --- a law firm with patent agency qualifications and specialized in providing IP services.

Team --- a team consisting of five partners and over 50 interdisciplinary talents, wherein most of them have more than ten years’ patent practicing experience; many have the lawyer qualifications and patent attorney qualifications, have a grasp of professional skills and the law, and are proficient in foreign languages.

Experience and skills --- we have dealt with a host of complex disputes and litigation cases, and thus accumulated rich experience and possess more professional legal skills compared with other agencies; we have the capability of more acute risk judgment and recognition, and thus are capable of avoiding potential legal risks when providing patent legal services.

Management---excellent and professional attorney team, strong workflow management team, strict quality control system, efficient time limit supervision.

Operation ---corporate management and team operation can integrate all resources in the law firm and provide comprehensive services to clients.

Comprehensive, multilayered and one-stop

Comprehensive:

As for the business scope, the patent services in Chang Tsi & Partners cover every aspect of patent matters, including invention, utility model, design, proprietary technology, trade secrets, product packaging and decoration, protection of new plant varieties, layout design of integrated circuits, patent management and assignment and unfair competition associated with patent, consumer rights and interests, product liability, advertisement and other fields.

Multilayered:

Including levels such as acquisition and maintenance of rights, protection of rights, commercial operation of rights and enterprise IP strategy.

Acquisition and maintenance of rights: patent layout, preparation of patent application documents, patent application, handling of notification of office action, invalidation for reexamination, administrative litigation of patent right verification, management of annual fees and patent maintenance.

Protection of patent rights: market investigation and monitoring, infringement analysis and proposals for protection against infringement, non-litigation dispute settlement (lawyer’s letter and claim for non-litigation infringement), administrative complaints on patent infringement, and civil action and criminal litigation against patent infringement.

Commercialization of patent rights: assessment of patent value, due diligence of patent lawyers, patent licensing and assignment, special legal services in the process of commercialization of patents and the like.

Enterprise patent protection strategy: including patent analysis of competitors, proposals for patent global layout of enterprises, proposals for patent management architecture of enterprises, and patent management process of enterprises and specification formulation.

One-stop:

We have rich experience in patent invalidation, patent administrative complaint and patent civil litigation. Meanwhile, our vision of business is not limited to patents, since we have rich experience of combining patents with other intellectual property rights, such as trademarks, copyrights, special package and decoration of well-known goods, and anti-unfair competition. A favorable judgment is not the end of our service, and we have a wealth of experience and success stories in promoting enforcement of such judements.

International Perspective
International working standards, international management and operation, and promote a long-term, extensive and closely-bonded business cooperation worldwide. Furthermore, the control systems of workflow and quality on the same level as globally-acclaimed practices.

Corporate Management and Team Operation
With regard to important or complicated cases, we have the ability to mobilize all the resources in the firm to deal with them; and we have a perfect team spirit and philosophy in a team consisting of attorneys, patent agents and investigators.

Customization and Result Orientation
In the process of acting on a case, we will, based on the case conditions and litigation objective of the client, aim at achieving the benefit maximization of the client, and creatively providing a customized solution for the client, so as to seek the accomplishment of the litigation objective. The win rate of the cases of patent invalidation that we represent can be more than 80%, including the cases both of declaration of invalidation on behalf of a petitioner, and of declaration of invalidation on behalf of a patent holder.

The number of litigations on patent we represent has amounted to more than 200, with a win rate of 90% whether on behalf of a plaintiff or a defendant.

Services We Can Offer:

  1. Assisting clients in setting up comprehensive strategies for patent protection, participating in setting up management system for patents and technological innovations, drafting standard of operation for patents and technological innovations
  2. Providing scientific, technological and patent intelligence information, including competitors’ patent portfolio investigation and competitors’ patent landscape analysis.
  3. Helping enterprises organize and formulate standards for worldwide patent portfolio’s verification and maintenance, including patent planning and landscaping, patent application and annuity payment services worldwide
  4. Schematic designing and negotiation for patent licensing, transfer and other patent commercialization
  5. Drafting, reviewing, and amending legal documents for patent assignment and licensing
  6. Patent searches, patent and legal status monitoring
  7. Drafting and filing patent applications for inventions, utility models, and designs
  8. Filing and defending for patent re-examination and invalidation
  9. Filing administrative litigation for patent related matters
  10. Providing Customs recordal and Customs training services
  11. Investigations and evidence collection for patent infringement
  12. Participating in administrative actions and arbitration for patent disputes
  13. Filing and defending administrative actions for patent infringement
  14. Filing and defending patent infringement litigations, including civil and criminal cases
  15. Patent annual fee payment and docketing services
  16. Due diligence for patents
  17. Providing patent valuation services
  18. Providing legal services for patent related antitrust and misuse
  19. Rendering patent related opinions, including Freedom-to-operate opinions, non-infringement opinion

Representative Cases

  1. Represented Midea to file an Invalidation against Invention of a Two-stage Dust and Gas Separation Structure
  2. Dart Industries, Inc. Patent Protection Cases
  3. Premark FEG LLC vs. Shanghai Veetsan Commercial Machine Co., Ltd (Comprehensive Infringement)
  4. Zhongyuan Applied Tech Research & Development Co., Ltd v.s. PetroChina
  5. Signode Industrial Group LLC. v.s. Qingdao Yateli & Hefei Hanjie
  6. China Academy of Railway Sciences Group Co., Ltd. Patent Protection Cases
  7. SKECHERS Patent Protection Cases
  8. LONGi v.s. Shijiazhuang Jinken Regarding Utility Model Patent
  9. Newell Patent Protection Project

Copyright & Domain Name

Chang Tsi & Partners has substantial expertise in providing legal services related to copyright and domain names, including copyright and domain name registration, customs recordation of copyrights, reclaiming infringing domain names, and other related matters.

Our services include:

  1. Consultation on overall strategy for copyright protection
  2. Filing copyright registrations for all types of works
  3. Filing copyright registrations for computer software
  4. Providing customs recordal and customs training services to protect copyrighted works
  5. Copyright infringement investigations and evidence collection
  6. Administrative and judicial remedies for copyright infringement
  7. Drafting, revising and reviewing legal documents related to copyright transfers, licensing and other transactions
  8. Copyright transaction due diligence services
  9. Registration of all types of domain names
  10. Registration of internet keywords
  11. Registration of wireless keywords
  12. Domain name infringement, arbitration, and litigation
  13. Domain name-related consultation

Representative Cases

Copyright Registration

  • Copyright Registration for American Eagle
  • Copyright Registration for Kohler Co.
  • Copyright Registration for Kaplan, Inc.
  • Copyright Registration for Hartford Financial Services Group, Inc.
  • Copyright Registration for Mead Johnson & Company, LLC
  • Copyright Registration for Illinois Tool Works Inc.

Copyright Infringement 

  1. Peng Mei v.s. China Decoration Magazine
  2. Yilong Network Information Technology (Beijing) Co., Ltd. v.s. Beijing Aitexin Information Technology Co., Ltd. 
  3. Dalian Shengya Tourism Holdings Co., Ltd. v.s. Gansu Jianrong Cultural Tourism Development Co., Ltd.
  4. Chen Guangyi v.s. Beijing Meishijie Information Technology Co., Ltd.
  5. Clearwater Seafoods v.s. Guangdong Doumen Seafood Import & Export Co., Ltd.
  6. The Learning Journey International, LLC v.s. Guangzhou S-Up Kids Co., Ltd. & Cai Zekai
  7. The dispute over the authorship of the drama "Xibaipo"
  8. Chang Tsi & Partners provided legal opinions regarding copyright issues involved in Disney products and merchandising right issues about its Mickey Mouse
  9. Chang Tsi & Partners represented American Institute of Certified Public Accounts (AICPA) to settle a dispute over copyright infringement against Douban.com
  10. Chang Tsi & Partners helped The Home Depot build an overall strategy on efficiently deterring the infringements in a cost-efficient way

Domain Name

  1. Domain Name Registration of timberland.net.cn
  2. Domain Name Management for Kohler Co.
  3. Domain Name Management for Formula One Licensing BV
  4. Domain Name Management for Solutia, Inc.
  5. Domain Name Registration of jonesnewyork.com.cn
  6. Domain Name Registration for Edgar Rice Burroughs, Inc.
  7. Domain Name Registration for Charles Schwab Corporation
  8. Domain Name Management for Honeywell
  9. Domain Name Registration and Management for China Railway Sixth Group Co., Ltd.
  10. Domain Name Registration and Management for Avis 
  11. Domain Name Management for Diners Club International
  12. Domain Name Management for Four Seasons Hotels Limited

Administrative Protection

Chang Tsi & Partners has substantial expertise in providing legal services related to copyright and domain names, including copyright and domain name registration, customs recordation of copyrights, reclaiming infringing domain names, and other related matters.

Our services include:

  1. Consultation on overall strategy for copyright protection
  2. Filing copyright registrations for all types of works
  3. Filing copyright registrations for computer software
  4. Providing customs recordal and customs training services to protect copyrighted works
  5. Copyright infringement investigations and evidence collection
  6. Administrative and judicial remedies for copyright infringement
  7. Drafting, revising and reviewing legal documents related to copyright transfers, licensing and other transactions
  8. Copyright transaction due diligence services
  9. Registration of all types of domain names
  10. Registration of internet keywords
  11. Registration of wireless keywords
  12. Domain name infringement, arbitration, and litigation
  13. Domain name-related consultation

Representative Cases

  1. General Electric
  2. Apple Inc.
  3. BGC Partners
  4. Blue Cross Blue Shield 
  5. Charles Schwab Corporation
  6. Cummins 
  7. Fairmont 
  8. Forbes, Inc.
  9. Formula One Licensing BV
  10. Four Seasons Hotels
  11. Honeywell 
  12. Illinois Tool Works Inc.
  13. Johnson & Johnson
  14. Kohler
  15. Mead Johnson
  16. Nike
  17. Novartis
  18. Pfizer
  19. Timberland 
  20. 3M
  21. Air China
  22. Amazon
  23. Best Buy Co., Inc.
  24. Beats Electronics
  25. BorgWarner 
  26. Caleres, Inc
  27. Canada Goose
  28. Campbell Soup Company
  29. Citigroup 
  30. Clearwater Fine Foods
  31. Intercontinental Great
  32. Deckers Outdoor Corporation
  33. Freescale
  34. Guinness World Records
  35. The Home Depot
  36. Trane Technologies
  37. Levi's
  38. Linkin Park
  39. Michael Kors
  40. Skechers USA, Inc.
  41. Tommy Bahama
  42. Toto Ltd.
  43. ZIH
  44. Bosch
  45. Six Continents Hotels, Inc.
  46. Millennium Pharmaceuticals, Inc.
  47. Dart Industries Inc.

Intellectual Property Litigation

Chang Tsi & Partners has represented many leading multinational and Chinese corporations, including many Fortune 500 Companies in all kinds of intellectual property disputes, including trademark and patent administrative proceedings, civil litigation involving patents, trademarks, copyrights (including software copyrights), domain names and trade secrets, and criminal trademark and patents prosecution cases, through which we have gained a strong reputation and extensive experience. We have been recognized as a leading law firm with great expertise in solving the most challenging and complex intellectual property related matters. Many cases handled by Chang Tsi & Partners have had significant impact, and our cases have been highlighted as representative cases by courts at all levels, including the Supreme People's Court.

Our services include:

  1. Administrative litigation on behalf of clients unsatisfied with invalidation of patent right rulings by the Patent Examination Board.
  2. Administrative litigation against the Trademark Review and Adjudication Board on objection, opposition review, and trademark cancellation matters.
  3. Handling trademark, patent, copyright, domain names, trade secrets, product packaging and decoration, and unfair competition disputes and litigation, including infringement arbitrations
  4. Provide counselling and advice related to trademark, patent, and copyright infringements.
  5. Handling effective implementation of legal instruments.

Representative Cases

  1. MICHAEL KORS v.s. Shantou Chenghai Jianfa Handbag Craft Factory [“Deal of the year”&“The Top Ten Intellectual Property Case with Research Value”&“Representative Case of the Year” recommended by the Supreme Court, Zhejiang High Court and Hangzhou Intermediate Court]
  2. Ambitmicro Technology Limited. v. Ambiq Micro,Inc. and Fujitsu Semiconductor (Shanghai) Co., Ltd. ["2019 Top 10 IP Cases" by Shanghai People's Court]
  3. Dongfang Xianglin v.s. Shenzhen Pagoda Orchard [2019 Top 10 Representative IP Cases]
  4. Chen’s sales of sanitary products with a “TOTO” counterfeit trademark [2019 Top 10 Representative IP Cases]
  5. Guinness World Records v. Chery Automobile: Trademark Infringement and Unfair Competition ["2017 Deal of the Year" by Chinese Business Law Journal & "2018 Top 10 IP Protection Cases" by Ningbo People's Court]
  6. Under Armour v. Fujian Tingfeilong [2018 Outstanding Trademark Cases, reported by New York Times, Wall Street Journal, Law360, etc.]
  7. LEVI STRAUSS & Co. vs. Guangzhou City Yixuan Apparel Co., Ltd. and Liu Zuofu ["Outstanding Cases" by Guangzhou IP Court]
  8. Infringement of Tupperware’s Trademark [2017 Top 10 Representative IP cases of Procuratorates in China]
  9. Administrative Dispute over the Request for Declaration of Invalidation of the Trademark “蒂凡尼”(Tiffany) [Representative Cases against Malicious Trademark Registration]
  10. Trademark Infringement Case on behalf of Six Continents Hotel  ["2015 Deal of the Year" by Chinese Business Law Journal]
  11. BorgWarner v.s. Counterfeit Manufacturers [Top 10 Representative Cases in Shandong Province]
  12. Comprehensive Trademark Protection Work for the Tang Brand of Drinks ["2014 Deal of the Year" by Chinese Business Law Journal]
  13. Criminal Prosecution Against LUO Dan in Terms of Selling Counterfeit Commodities with the Registered Trademark ARROW
  14. Appeal of Administrative Dispute over Design Patent Invalidation of Kohler Co.
  15. Graco Inc. v.s. Shanghai Sanqi Co.
  16. Tiffany Trademark Case
  17. 3M'S POST-IT Trademark Protection Case
  18. Dart Industries, Inc. v.s. Guangdong Baoyang Regarding Design Patent Infringement
  19. VANS Trademark Protection Project
  20. LEVI'S Trademark Protection Project
  21. Carlisle Fluid Technologies, Inc. v.s. Xianju Tewei Pneumatic Tools Company and Shenzhen Davis Spraying Company for Trademark Infringement
  22. Guihe Ma v.s. JD.com, Inc., Qi Xin Xing E-Commerce Ltd., & Kohler Co.
  23. Johnson & Johnson Trademark Protection Case
  24. Well-known Trademark Recognition for LEGO
  25. Conocophillips Trademark and Anti Unfair Competition Case 
  26. Dairy Queen (DQ) v.s. Guangzhou Kaimei
  27. Trademark Protection Project for Yingda International Holdings Group Co., Ltd.

Antitrust and anti unfair competition

  1. Antitrust merger control filings.
  2. Antitrust compliance and advisory work.
  3. Anti-unfair competition litigation involving counterfeits, registered trademarks, well-known trademarks, and packaging design and decoration.
  4. Anti-unfair competition litigation of false publicity.
  5. Anti-unfair competition litigation for restricted competition and overcharging.

Representative Cases

  1. BOE Technology Group Co,Ltd. & Beijing Orient Vacuum Electric Co, Ltd. Suing Wenzhou BOE Vacuum Electric Co, Ltd. Unfair Competition
  2. Guangzhou Daming Ltd., v.s. Guinness World Records Regarding Unfair Competition
  3. Conocophillips v.s. Guangzhou Kangfei Regarding Unfair Competition
  4. Carlisle Fluid Technologies, Inc. v.s. Xianju County Tewei Pneumatic Tools, Co., Ltd. and Its Affiliated Companies
  5. DEMATIC International Trading (Shanghai) Co., Ltd. v.s. Guangzhou Dematic Packaging System Co., Ltd.
  6. Graco Inc. v.s. Shanghai Sanqi Co.
  7. Guinness World Records v. Chery Automobile: Trademark Infringement and Unfair Competition
  8. Intercontinental Great Brand LLC v.s. Dongguan Changshunli Foods Co., Ltd. and Guangdong Changshun Jiezhou Foods Co., Ltd. Regarding Unfair Competition Dispute
  9. Cadbury v.s. Yi Kou Lian & Beijing Hui Fu Yuan Regarding Trademark and Unfair Competition Dispute
  10. 3M v.s Shanghai Fuyin and Dongguan Fuyin

Other Related Intellectual Property Legal Services

In addition to intellectual property prosecution and enforcement, Chang Tsi & Partners also provides customized corporate intellectual property strategy development, brand licensing, franchising, due diligence and other intellectual property rights related services.

Our services include:

  1. Full range of Corporate IP strategy development.
  2. Customer focused corporate brand value enhancement strategy work.
  3. Customer focused corporate brand development strategy work.
  4. IP value-added negotiation and legal services related to license transfer and due diligence.
  5. Global trademark protection and global licensing strategy.
  6. Consulting on franchise related policy and legal needs, setting up franchise system framework structures, drafting and modifying franchise contracts, and other related services.
  7. Other legal services related to intellectual property

Representative Cases

  1. Patent Due Diligence Project for Kohler Co.
  2. IP Due Diligence Project for IWT Regarding Vesta (Ying Lian Si Te) Acquisition Case
  3. IP Due Diligence Project for IWT Thermal Films Acquisition Case
  4. Trademark Management System R&D Project for BOE
  5. IP Management Manual Project for Air China 
  6. Buildex Trademark Protection Project
  7. Represented Siemens Ltd. (China), Chang Tsi & Partners assisted the public security authorities to crack a criminal case concerning sales and counterfeit of industrial automation products
  8. Represented Nine West to conduct administrative investigation and complete a case of selling counterfeit products in Alibaba online stores
  9. Represented Hanesbrands Inc. to hold infringing products in customs detention
  10. Timberland Trademark Protection Project
  11. Hobart Trademark Protection Project
  12. AMBIQMICRO Trademark Protection and Litigation Case
  13. TOTO Trademark Protection Project
  14. VOLTALERT (Fluke) Trademark Protection Project
  15. VANS Trademark Protection Project
  16. Body Glove International, LLC v.s. Xubin Shi (Comprehensive Protection Project)