China patent law officially implemented time.

Legal analysis: The latest Patent Law of People's Republic of China (PRC) came into effect on June 1 2026, and was revised for the fourth time according to the Decision on Amending the Patent Law of People's Republic of China (PRC) at the 22nd meeting of the 13th NPC Standing Committee on June 10, 2020.

Legal basis: Patent Law of People's Republic of China (PRC) Article 1 This Law is formulated for the purpose of protecting the legitimate rights and interests of patentees, encouraging inventions and creations, promoting the application of inventions and creations, improving innovation ability, and promoting scientific and technological progress and economic and social development.