Patent reexamination is a review process initiated when an applicant disagrees with a rejection decision issued during substantive examination. It is conducted by a reexamination panel from the Patent Reexamination and Invalidation Department of the CNIPA, who were not involved in the initial rejection.

In the rapidly evolving landscape of Artificial Intelligence, defining the demarcation between "mathematical algorithms" and "patentable technical solutions" has become a cornerstone of global IP strategy. By comparing recent invalidation decisions from the China National Intellectual Property Administration, specifically Cases No. 586065, 584244, and 588362, with the U.S. Federal Circuit’s ruling in Recentive Analytics v. Fox Corp., we can discern critical jurisdictional nuances in how the validity of AI patents is adjudicated.

The SPC's ruling establishes that while the Patent Office can verify priority ex officio, it cannot use "secrecy" to bypass due process. This decision serves as a critical precedent for practitioners, signaling that any evidence used to strip a party of their IP rights must be brought "into the light" through formal cross-examination.

This article reviews and analyzes the key clause-level changes between the two administration regulations, with the aim of providing practical reference for rightsholders in building and maintaining robust trade secret protection systems.

The (2023) SPC IP Civil Final No. 2444 judgment is a landmark victory for good faith in the IP sector. For MNCs, it reinforces the view that the Chinese judiciary is willing to look beyond formal registrations to protect employers' substantive rights against bad-faith misappropriation by senior personnel.

Wishing our clients, colleagues, and friends around the world prosperity, good health, and success in the Year of the Horse.
May the new year bring stronger partnerships, and meaningful progress across borders.

When a former supplier turns into a plaintiff, it’s a threat to your entire production line.

Throughout 2025, Jiaquan IP Law successfully hosted a series of Foreign-Related Intellectual Property Enforcement webinars.

● China IP News: 2026 No. 002

Honored to share that Jiaquan IP has once again been named a 2025 Outstanding Intellectual Property Service Team.