3 Utility Patents
#6,571 in Shanghai
#43,295 in China
Forward Citations = 0
Company Filing History:
Shanghai Huachang Environmental Protection Co., Ltd.
Sichuan University
Luoyang Petrochemical Engineering Corporation (lpec) Sinopec
4. 1 out of 1
Shanghai Huachang Environment Protection Co., Ltd.
where one patent can have more than one assignee
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