Services We Can Offer

• Consultation on overall strategy for copyright protection
• Filing copyright registrations for all types of works
• Filing copyright registrations for computer software
• Providing customs recordal and customs training services to protect copyrighted works
• Copyright infringement investigations and evidence collection
• Administrative and judicial remedies for copyright infringement
• Drafting, revising and reviewing legal documents related to copyright transfers, licensing and other transactions
• Copyright transaction due diligence services
• Registration of all types of domain names
• Registration of internet keywords
• Registration of wireless keywords
• Domain name infringement, arbitration, and litigation
• 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 

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

Copyright Registration & Ownership Confirmation

We assist clients in registering copyrights for a wide range of works, including text, graphics, photography, software, and audiovisual content. Our services include authorship identification, originality evidence, and official filing to establish solid ownership foundations.

Services We Can Offer

• We assist clients with copyright registration for a wide range of works, including literary, graphic, photographic, visual art, musical, audiovisual, software, and multimedia content;
• Support clients in confirming authorship, first publication dates, and originality declarations;
• Provide guidance on evidence preservation, blockchain-based notarization, and ownership traceability;
• Represent clients in copyright registration objections and ownership disputes.

Copyright Licensing & Agreements

We draft, review, and negotiate copyright agreements—including exclusive/non-exclusive licenses, commissioned works, joint authorship, and adaptation rights—ensuring lawful exploitation and control of copyrighted content.

Services We Can Offer

• Draft, review, and negotiate agreements related to copyright licensing, assignment, joint authorship, and commissioned works;
• Build compliance frameworks to prevent title defects and ownership conflicts;
• Assist clients in establishing licensing mechanisms and revenue-sharing structures;
• Handle disputes and enforcement related to license breaches and takedown issues.

Infringement  & Copyright Litigation

We represent clients in infringement cases such as piracy, unauthorized use, and plagiarism, offering a full suite of enforcement tools including cease-and-desist letters, administrative actions, civil litigation, and criminal referrals.
We tackle digital copyright risks with tools like content monitoring, takedown procedures, and evidence preservation—protecting rights on social media, video platforms, and digital content communities.

Services We Can Offer

• Monitor online and offline infringements and collect evidence; represent rights holders in sending cease-and-desist letters, filing complaints, and initiating litigation;
• Assist clients in addressing unauthorized reproduction, unlicensed distribution, misattribution, and unauthorized derivative works;
• Handle major civil infringement lawsuits, criminal complaints, and administrative enforcement;
• Support negotiation, settlement agreement drafting, and execution of compensation claims.

Software Copyright & Open Source Compliance

We help software developers with code registration, interface rights clarification, open-source audits, and license model structuring, ensuring lawful and sustainable management of software assets.

Services We Can Offer

• Handle software copyright registration and source code documentation, and assist in establishing code management protocols;
• Assess software asset ownership structures and identify legal risks;
• Provide compliance reviews on open source license usage and audit of open-source components;
• Help clients build compliance controls within software development workflows involving open source technologies.

Copyright for Film, TV & Entertainment

We support film, music, and entertainment clients with services from script protection and licensing to co-production deals, international distribution, and platform compliance, ensuring secure circulation across markets.

Services We Can Offer

• Support registration, licensing, and adaptation management of content such as films, TV shows, animation, variety programs, and short videos;
• Represent clients in dealing with piracy, unauthorized editing, content repurposing, and derivative infringement disputes;
• Advise entertainment companies on copyright compliance, crediting, and authorship issues;
• Provide copyright support in international distribution, platform collaboration, and content licensing.

AI-Generated Content Compliance & Authorship

We assess the copyrightability of AI-generated content, advise on authorship in human-AI collaboration, and assist organizations in developing compliance frameworks to mitigate future legal risks.

Services We Can Offer

• Analyze legal frameworks concerning authorship, protection boundaries, and applicability of copyright to generative AI content;
• Assist enterprises in establishing AI content usage and generation policies to mitigate infringement risks;
• Assess the legality of training data use and downstream utilization of AI-generated content;
• Support clients in handling domestic and international claims and disputes related to AI-generated works.

International Registration & Cross-border Enforcement

We assist clients in registering copyrights worldwide, filing customs records, resolving domain disputes, and enforcing rights across borders—supporting content globalization and cross-market distribution.

Services We Can Offer

• Represent clients in international copyright registrations, including filings with the U.S. Copyright Office and WIPO;
• Assist in registering works under the Madrid system and other multilateral frameworks;
• Coordinate enforcement resources across jurisdictions for cross-border infringement actions;
• Provide overseas infringement monitoring, enforcement strategy, and negotiation support.

Copyright Transactions & IP Commercialization

We advise on copyright acquisition, licensing, pledge financing, and asset valuation—helping clients transform copyright into bankable, tradable, and revenue-generating IP assets.

Services We Can Offer

• Support clients in commercializing copyright assets through licensing, assignment, capital contribution, and pledging;
• Draft and review content licensing agreements, platform collaboration contracts, and IP investment documents;
• Provide copyright valuation, royalty structuring, and tax compliance advice;
• Assist with copyright asset acquisition, restructuring, and securitization.