Partner | Attorney at Law
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing
Your Trusted Partner for Intellectual Property Protection Across Asia
Where Deep Local Knowledge Meets Unwavering Global Commitment
Offices in Beijing, Shanghai, Guangzhou, Shenzhen, Hong Kong, Macau, Taiwan, and Singapore | Serving All 47 Asian Jurisdictions
Asia’s vast landscape — spanning 47 jurisdictions, diverse legal systems, and evolving infrastructures — demands more than generic IP solutions. At Chang Tsi & Partners, with over 70 Asia professionals, we combine more than two decades of specialized expertise, localized partnerships, and on-the-ground agility to safeguard your intellectual property and form your pan-Asian IP strategy as your Asia IP Hub across all 47 Asian jurisdictions.
Chang Tsi & Partners has extensive experience and a well-established network for handling patent matters across Asia. We assist clients with patent filing, prosecution, maintenance and enforcement across Asian jurisdictions, supported by qualified patent attorneys and dedicated professionals covering a broad range of technologies. Our close collaboration with local associates and intellectual property authorities enables us to provide efficient and reliable support throughout the region.
Chang Tsi & Partners assists clients with design matters across Asia, including filing, prosecution, maintenance and enforcement in Asian jurisdictions. Our qualified IP professionals work closely with local associates and IP authorities throughout the region, drawing on extensive practical experience and in-depth knowledge of Asian design protection systems.
Chang Tsi & Partners assists clients across Asia with trademark filing strategies, registrability searches, prosecution, rights protection and renewals. We also advise on recordal and post-registration matters and work closely with local associates and IP authorities throughout the region. Our experience and knowledge of Asian trademark systems enable us to develop effective prosecution and protection strategies across multiple jurisdictions.
Chang Tsi & Partners provides copyright registration, protection and advisory services across Asia. Our team has extensive experience with the legal and regulatory frameworks of Asian jurisdictions and works closely with our regional network to protect clients’ copyrights and related IP rights.
Chang Tsi provides end-to-end IP annuity management across Asia, covering fee calculation, deadline monitoring, payment instructions and coordinated multi-jurisdictional payments. Our services cover 47 Asian jurisdictions, helping clients maintain their IP rights while reducing the administrative burden of managing different local annuity systems.
We handle all aspects of IP renewals across Asia - from deadline monitoring to multi-jurisdictional portfolio management. Our systematic approach ensures seamless continuation of your intellectual property rights.
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing
Trademark / Copyright / Asia Hub
Beijing
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing / Shanghai
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing
Trademark / Copyright / Asia Hub
Beijing
Patent & Technology / Trademark / Copyright / Litigation & Disputes Resolution / Global Renewal and Annuity Service / Asia Hub
Beijing
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Hong Kong / Taiwan / Macau / Singapore
Patent & Technology / Asia Hub
Shenzhen / Hong Kong / Taiwan / Macau / Singapore
Trademark / Copyright / Asia Hub
Hong Kong / Taiwan / Macau / Singapore
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Hong Kong / Taiwan / Macau
Trademark / Global Renewal and Annuity Service / Asia Hub
Korea
Patent & Technology / Asia Hub
Hong Kong / Taiwan / Macau / Singapore
Plant Variety Protection / Asia Hub
Hong Kong / Taiwan / Macau
Asia Hub
Singapore
Trademark / Copyright / Litigation & Disputes Resolution / Asia Hub
Beijing
Trademark / Asia Hub
Singapore
Trademark / Asia Hub
Taiwan
Trademark / Asia Hub
Hong Kong
Trademark / Asia Hub
Macau
Trademark / Asia Hub
Singapore
Trademark / Asia Hub
Hong Kong / Macau
Trademark / Asia Hub
Macau
Trademark / Asia Hub
Singapore
Trademark / Asia Hub
Hong Kong
Against the backdrop of global intellectual property (IP) portfolio strategies, Hong Kong, Macau and Taiwan have emerged as critical gateways for domestic enterprises seeking to go global and for overseas enterprises entering the Chinese market — each offering unique geographical advantages and distinct institutional environments. Yet a fundamental fact that is frequently overlooked is that Hong Kong, Macau and Taiwan each maintain independent IP legal systems and patent examination regimes; patents granted on the Chinese mainland do not automatically take effect in any of the three jurisdictions. Enterprises that rely solely on mainland patents will find their innovations entirely unprotected and without legal recourse across Hong Kong, Macau and Taiwan. For domestic enterprises, these three jurisdictions serve as vital hubs connecting the mainland to global markets and as the frontline for commercialising technological achievements; for overseas enterprises, they represent a regulatory corridor and “testing ground” for entering the Chinese mainland market. This article examines the key institutional differences among the three patent regimes, the strategic case for filing in each jurisdiction, and the practical steps required, offering a reference framework for enterprises navigating cross-jurisdictional IP protection.
In South Korea, trademarks are important intangible assets of enterprises, bearing brand value, credibility and market competitiveness. As markets evolve and competition intensifies, maintaining continuous trademark protection has become critical for enterprises to safeguard their brand rights. Based on the official regulations of the Korean Intellectual Property Office (KIPO), this article details the renewal process, key considerations and coping strategies for South Korean trademarks, helping enterprises efficiently complete their trademark renewal procedures.
Taiwan's Intellectual Property Office (TIPO) launched the Accelerated Examination Pilot Program for Female Invention Patent Applicants on July 1, 2025. Following a highly successful first year, the program has been officially extended for another year — from July 1, 2026, to June 30, 2027.
The renewal of Brunei trademarks is a key process to maintain the continuous validity of trademark exclusive rights. In accordance with the official regulations of the Brunei Intellectual Property Office (BruIPO) and its relevant norms for trademark management, this article details the core system, application requirements, fee standards and relevant precautions for Brunei trademark renewal, providing comprehensive and operable guidance for trademark owners.
A trademark in Malaysia is a unique sign used to distinguish the source of goods or services. It can include traditional elements such as names, words, phrases, logos, symbols and designs, as well as non-traditional types like colors, scents and sounds. When in use, registered trademarks can be marked with "®", while unregistered ones are marked with "™".
In a significant development for intellectual property rights, Qatar has officially opened Class 33 for trademark registration, marking a major shift in the country’s trademark framework and bringing it closer to international standards. The Qatar Trademark Office has adopted the 13th Edition of the Nice Classification, effective February 2026. A recent circular issued by the office confirmed that all 45 classes under the Nice Classification are now fully available, including the previously restricted Class 33.
As a global innovator or IP firm navigating China's patent landscape, stay ahead with the latest revisions to China's Patent Examination Guidelines—set to take effect on January 1, 2026. Issued via China National Intellectual Property Administration (CNIPA) Order No. 84, these updates streamline procedures, clarify requirements, and optimize cost structures. Below is a concise breakdown of critical process changes impacting international applicants and their representatives:
China's plant variety protection (PVP) system operates under a dual-track regime, distinct from many other jurisdictions. Breeders' rights are protected through two parallel but separate legal channels.
In today's digital marketplace, Google AdWords presents both opportunities and challenges for trademark owners. While AdWords enables precise targeting and brand visibility, it also raises complex trademark issues, especially when competitors bid on branded keywords.
On July 13, 2026, the National Copyright Administration of China (NCAC) released a draft revision of the Regulations on the Implementation of the Copyright Law (the "Implementing Regulations") for public comment through August 12, expanding the current 38 articles to 49.
In 2024, global utility model patent applications reached 3.3 million, with China accounting for 3.2 million, or 96.7% of the total, leading the world by a wide margin. The United States has no such system, and Europe has only negligible filings despite relevant mechanisms. This gap stems from different technological stages, industrial structures and institutional designs. China’s utility model patent system is an institutional innovation tailored to its domestic needs, strongly supporting high-quality economic development and technological progress.
In the global stage of patent portfolio planning, South Korea and China have always been important destinations for patent applications. The invention patent examination systems of the two countries are similar in their macro framework, but upon close examination, there are non-negligible differences in key timelines and specific procedures.