6 Utility Patents
#3,516 in Shanghai
#22,310 in China
#695,272 in the World
Forward Citations = 0
Company Filing History:
East China University of Science and Technology
Shanghai Huachang Environmental Protection Co., Ltd.
Luoyang Petrochemical Engineering Corporation (lpec) Sinopec
4. 1 out of 3
Research Institute of Nanjing Chemical Industrial Group
5. 1 out of 1
Shanghai Huachang Environment Protection Co., Ltd.
where one patent can have more than one assignee
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