74 Utility and 38 Design Patents
#13 in Hangzhou
#840 in China
#17,751 in the World
rank by utility patentsForward Citations = 427
Company Filing History:
Hangzhou Hpwinner Opto Corporation


4. 3 out of 19,722

5. 3 out of 5,298

where one patent can have more than one assignee
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