我国加入专利合作条约自１９９４年１月１日起，我国正式成为《专利合作条约》（ＰＣＴ）成员国，中国专利局成为ＰＣＴ的受理局、国际检索单位和国际初步审查单位，中文成为ＰＣＴ的正式工作语言之一。加入ＰＣＴ后，中国申请人只要使用中文向中国专利局递交一份国际申请... China's accession to the Patent Cooperation Treaty Since January 1, 1994, China has officially become a member of the Patent Cooperation Treaty (PCT), the Chinese Patent Office has become the receiving authority of the PCT, the International Searching Authority and the International Preliminary Examining Authority, and the Chinese has become the PCT One of the official working languages. After joining PCT, Chinese applicants only need to use Chinese to submit an international application to the Chinese Patent Office ...