Restored to his position in 1971, from that year to 1981 he was the Director of Legal Affairs in the China Council for the Promotion of International Trade (CCPIT), and, importantly, Secretary-General in its Maritime Arbitration Commission. This position became significant with the start of the Chinese economic reform, and Ren dealt with globally key maritime players, such as Greek ship-owners. In November 1973, Ren Jianxin headed a Chinese Government delegation, including Lu Long, Wang Zhengfa, and Yang Bo, to Geneva as an observer for the Fourth Series of Meetings of the Governing Bodies of the World Intellectual Property Organization (WIPO).[7][8] On 3 March 1980, China presented its applications to WIPO, which became effective for China on 3 June 1980.[9]
In 1983, Ren entered the Supreme People's Court of China as Executive Vice President for five years until 1988, and then President for the next 10 years from 1988 to 1998.[10] It was during this time that he also advanced in the CCP, serving as a full member of the CCP's 13th and 14th Central Committees (1987–1997) and was chosen to become a member of the Secretariat of the Chinese Communist Party (1983–1992) and later also the Secretary of the Central Political and Legal Affairs Commission, from 1992 to 1998.[11] In 1982, 1984, and 1990, the three pillars of China's intellectual property laws—the Trademark Law, the Patent Law, and the Copyright Law—were enacted as a result of Ren's coordination and initiative.[12]
