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 49 Asian Jurisdictions
Asia’s vast landscape — spanning 49 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 49 Asian jurisdictions.
We are able to assist with the filing, prosecution, maintenance and enforcement of Patents in all countries in Asia. We have a team of qualified Patent Attorneys across all technical fields and dedicated support teams who work closely with our Associate and IP offices across Asia. Our extensive experience coupled with an in-depth and first-hand knowledge of Asia’s IP systems ensures that we are best placed to assist our clients with their Patent matters in all countries in Asia.
We are able to assist you with IP matters across Asia, including filing, prosecution, maintenance, and enforcement of Registered Designs in all countries in Asia.
Our team of qualified IP attorneys and dedicated support teams work closely with our associate and IP offices across Asia. With extensive experience and in-depth, first-hand knowledge of Asia’s IP systems, we are ideally positioned to assist our clients with all aspects of their Registered Designs matters throughout Asia.
We are able to assist with filing strategies, availability searches and the filing, prosecution, maintenance and enforcement of your trademark, as well as recording any changes pertaining to your trademark, and providing related advice, in all countries in Asia. We have qualified trademark and IP practitioners and dedicated support teams who work closely with our associate and IP offices across Asia. Our extensive experience coupled with an in-depth and first-hand knowledge of Asia’s IP systems ensures that we are best placed to assist our clients with prosecution strategies and the protection of their trademark in all countries in Asia.
We are able to assist you with IP matters across the continent. We can advise on the registration and protection of copyright in all countries in Asia.We have a team of qualified IP professionals and dedicated support teams who are familiar with Asia’s legislative landscape and work closely with our associate offices across Africa in protecting our clients' Copyright and other Intellectual Property. Our extensive experience coupled with an in depth and first-hand knowledge of Asia’s IP laws and legal systems ensures that we are best placed to assist our clients with their Copyrights matters across Asia.
We specialize in the management of patent annuity payments across Asia - from fee calculation to multi-country payment processing. Our centralized service ensures compliance while minimizing administrative burdens.
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
Macau
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.