Ruitu Law Firm was founded in 2018 under the leadership of Jiang Haijun, a leading intellectual property expert in Jiangsu Province. Its headquarters is located in Nanjing, Jiangsu Province, and branch offices have been established in Suzhou, Changzhou, Hefei, and Hangzhou (in preparation), specializing in the full process legal services of intellectual property application, invalidation, litigation, and operation.

The team currently has 1 national expert in handling overseas intellectual property disputes, 2 leading talents in intellectual property in Jiangsu Province, 6 backbone talents in intellectual property in Jiangsu Province, 5 first batch of national patent information practice talents, and 50 people with legal professional qualifications and patent agent qualifications.

Agency cases were selected into the eight typical cases of the Supreme People's Court against unfair competition in 2025, the ten typical cases of patent administrative protection of the China National Intellectual Property Administration in 2024, the first ten typical cases of patent transformation and application of the All China Association of Patent Agents in 2024, the ten typical cases of the Supreme People's Court against unfair competition in 2022, the typical cases of the Intellectual Property Court of the Supreme People's Court (2022), the ten typical cases of national intellectual property administrative protection in 2022, the 100 typical cases of the fifth anniversary of the establishment of the Intellectual Property Court of the Supreme People's Court, the ten cases of invalidity of patent reexamination in 2022 of the China National Intellectual Property Administration, the top ten cases of the Intellectual Property Professional Committee of the All China Bar Association in 2019, and 50 Chinese courts in 2018 Typical cases of intellectual property, etc.