13 Utility Patents
#3,489 in Beijing
#9,483 in China
#296,785 in the World
Forward Citations = 13
Company Filing History:


Yantai Zhenghai Bio-tech Co., Ltd
4. 1 out of 832,540 patents
Other
5. 1 out of 1
Yantai Zhenghai Bio-technology Co., Ltd.
where one patent can have more than one assignee
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