Patent Law

RNAi Patent Success in China: Overcoming “Comprising” Claim Challenges

10 March 2025

An Update on Sufficiency and Inventiveness of RNAi Patents in China RNAi is a fast-developing technology that has gained traction in the pharmaceutical industry as a promising therapeutic agent. It is important to follow closely RNAi patent proceedings to learn how different examination boards and courts understand and handle these new technologies. The first-ever invalidation […]

New Remedy in China for Fixing "Errors" in a Patent Application: Incorporation by Reference

21 March 2024

Background As mentioned in our earlier article, the Implementation Regulations of the Chinese Patent Law (“Regulations”, similar to the CFR in the US) were approved in November, and the CNIPA finally made public the full text of the Regulations just before the arrival of the New Year. At the same time, the CNIPA also released the new […]

Updates on Hong Kong Patents Examination Guidelines in 2024

29 February 2024

The Intellectual Property Department of the Government of the Hong Kong Special Administrative Region of the People’s Republic of China (HKIPD) has recently made several updates to the Hong Kong Patents Examination Guidelines, effective from 26 January, 2024. These changes mainly clarify and reflect the Registry’s current practices regarding patent examination for Standard Patent (R) […]

IP Strategies for the Newly Released Implementation Regulations of the 4th Amendment of the Chinese Patent Law: Part 3: The 15-Day Mailing Period is Mostly Going Away

28 February 2024

A Closer Look at the New Presumed Receipt Date Calculation Background China has finally released the long-awaited Patent Law Implementation Regulations (“Regulations”) and associated "Patent Examination Guidelines" (“Guidelines”, similar to the United States' MPEP) which provide further clarity and details of the new Chinese patent law. Today’s article will focus on changes that impact how […]

IP Strategies for the Newly Released Implementation Regulations of the 4th Amendment of the Chinese Patent Law: Part 1: Delayed Examination

25 January 2024

December 2023 appears to have been an exceptionally busy and fruitful month in the China patent space. Following the State Council’s approval of the long-awaited Patent Law Implementation Regulations (“Regulations”, similar to the CFR in the US) in November, the CNIPA finally made public the full text of the Regulations just before the arrival of […]

Twice the Trouble: Unraveling a Single Case of Dual Patent and Trademark Infringement

9 January 2024

Can a rights holder sue the same infringer separately based on one single infringing act that infringes both trademark and patent rights? An interesting case this year from China’s Supreme People’s Court that addresses this specific issue ((2023)最高法知民终235号). Beijing Run De Hong Tu Technology Development Co., Ltd. (“Run De Hong Tu”) sued an individual named […]

Do Promotional Marketing Materials Constitute an “Offer for Sale” under Chinese Patent Law? Bayer IP GmbH v. Nanjing Hang Seng Pharmaceutical

12 December 2023

Bayer's blockbuster drug Rivaroxaban has seen its share of patent litigations in China, several of which are big enough to be listed as Top 10 IP cases or 50 Representative IP cases. We summarized an invalidation case back in 2020 where all of Bayer’s claims directed towards the compound were upheld. Recently, another Rivaroxaban case […]

First ever Invalidation decision on an RNAi Invention patent in China

4 December 2023

Decision on Examination of Request for Invalidation (No. 58530) In one of China’s Top 10 Patent Re-examination / Invalidation cases of 2022, an invalidation decision on a patent claiming Hepatitis B Virus (HBV) RNAi compositions (No. 58530) by the Patent Re-examination Board (the “Board”) sheds light on the standard for post filing data for rejections […]

Inventive Step for an Enantiomer over a Racemate: “L-ornidazole” Patent Invalidation Case

27 November 2023

Each year, China’s Supreme People’s Court (SPC) issues its annual “Judgment Digests”, which includes a list of “48 typical cases” highlighting representative SPC decisions in the previous year. The Judgment Digests help us understand more about the SPC’s judicial ideology, trial concepts, and adjudication methods in dealing with difficult and sophisticated legal issues as well […]

Announcement: Implementation Regulations (Rules) of the Chinese Patent Law have been Approved

10 November 2023

On November 3rd, 2023, the Premier of the State Council, Li Qiang, chaired a regular meeting where the "Implementation Regulations of the Patent Law of the People's Republic of China (Revised Draft)" was reviewed and approved. This is great news, as we have been waiting quite some time for these Regulations (Rules) to be approved (see […]

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