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 decision in China for an RNAi patent1 was rendered in 2022 by the Patent Re-examination Board (the “Board”). We previously wrote about this case, which discussed the standards for post-filing data, sufficiency, and inventive step, particularly for RNAi inventions. Since then, two newer cases involving RNAi have also been upheld by the Board after facing similar…
