11 Utility Patents
#62 in Shandong
#11,538 in China
#363,407 in the World
Forward Citations = 108
Company Filing History:


Wanhua Chemical Group Co., Ltd.
4. 1 out of 11
Weihai Hualing Opto-electronics Co., Ltd
5. 1 out of 17
Wanhua Chemical (ningbo) Co., Ltd.
where one patent can have more than one assignee
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