China's national intellectual property administration (CNIPA) has released ten typical cases from 2025 involving patent reexamination and invalidation. These cases were selected because they are highly relevant, widely discussed, and provide useful guidance on how patent rules are applied in practice.
Case 1: "A Method for Preparing Heterologous Triploid Scallops" (Reexamination)
The patent office overturned an earlier rejection.
The decision clarifies how to assess technical effects in aquaculture patents and what counts as common general knowledge in the field. This is particularly important for protecting innovation in marine seed industry and supporting ocean related industries.
Case 2: "A Pharmaceutical Composition for Treating Cerebrovascular Diseases" (Invalidation)
