Seminar on Administrative Litigation of Patent Reexamination and Invalidation Held in Beijing

WISECODE Take

On November 4, 2026, CNIPA and the Supreme People's Court held a joint seminar to harmonize patent invalidation and judicial review standards. Many business owners assume obtaining a patent certificate guarantees enforceability, ignoring that courts often apply stricter substantive standards. Focusing on AI-related patents and parameter-characterized claims, authorities are shifting toward invalidating vaguely drafted patents during litigation. Companies relying solely on patent quantity without substance risk having their patents invalidated in mainland China enforcement actions. Businesses should: first, audit Chinese patents involving parameters or algorithms to supplement experimental data; second, disclose concrete technical solutions rather than generic AI descriptions in new applications.