8 Utility Patents
#2,559 in Shanghai
#16,488 in China
#519,767 in the World
Forward Citations = 2
Company Filing History:
East China University of Science and Technology
Luoyang Petrochemical Engineering Corporation (lpec) Sinopec
Sichuan University
4. 1 out of 6
Shanghai Huachang Environmental Protection Co., Ltd.
5. 1 out of 1
Shanghai Huachang Enviromental Protection Co. Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today