17 Utility and 1 Design Patents
#1,079 in Shanghai
#6,927 in China
#210,427 in the World
rank by utility patentsForward Citations = 49
Company Filing History:
Shanghai North Ocean Photonics Co., Ltd.

Other
4. 1 out of 592

5. 1 out of 117

where one patent can have more than one assignee
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