On Nov 26 2025, Chang Tsi & Partners hosted the 2025 Intellectual Property Frontier Legal Forum in Shanghai, bringing together experts from legal practice, academia and international organizations to discuss emerging trends in IP protection and enforcement. The forum focused on key issues such as artificial intelligence and IP law, global trademark protection, legislative updates, and cross-border brand strategy, highlighting the growing importance of intellectual property in international business and innovation.
This is a typical patent invalidation case associated with patent infringement litigation.
This case is a typical non-use cancelation case, where the owner did not properly use its registered trademark.
Since December 2015, LEGO has begun placing advertisements widely at subway stations in Beijing, Shanghai, Guangzhou and other Chinese cities, among which the most noticeable slogans were the following two, i.e. v
On October 12, 2018, Guangzhou Intellectual Property Court (GIPC) made the second-instance judgment on the case involving a dispute against Guangzhou Xin Fan Cai Trading Co., Ltd. over the infringement of Levi`s trademark consisting of double arcs.
This case was between a renowned foreign company, Guinness World Records, and a famous domestic company, Chery Automobile, concerning trademark infringement and unfair competition.
This case a trademark rights infringement dispute.
Recently, Asian Legal Business (ALB), often described as "the Forbes" in the legal field, revealed the result of the selection of "China Top 15 IP Lawyers 2018".
In December of 2018, China Business Law Journal published "The A-List 2018 China's Top 100 Lawyers", and Simon Tsi, the Managing Partner of Chang Tsi & Partners, was again honored with this title and evaluated as having "intimate legal knowledge, rich practice experience, sharp business thinking, international perspective, extraordinary abilities in teamwork, and, most of all, professional dedication by putting clients first".
On December 1st, 2018, Chambers and Partners, one of the authoritative legal rating agencies around the world, released its Asia-Pacific ranking 2019.
OEM is short for Original Equipment Manufacturer, and refers to a business mode in which a brand holder does not directly manufacture its products but entrusts another party with the manufacture and then directly applies the trademark of its own brand on the products.
November 23rd, 2018 was the day when all members of Chang Tsi & Partners gathered together and joyfully cheered for the notable achievement in trademark business in 2018——up till September 9th, the number of new applications for trademark as represented by Chang Tsi has outnumbered the annual total quantity in 2017!
Recently, Asialaw Profiles, a renowned legal rating agency, released the latest version of the definitive guides to Asia-Pacific's recommended law firms for 2019.
