21 Utility Patents
#816 in Shanghai
#5,367 in China
#157,531 in the World
Forward Citations = 2
Company Filing History:
Smartsens Technology (hk) Co, Limited
Casco Signal Ltd.

4. 2 out of 13
Casco Signal Co., Ltd.
5. 1 out of 21
Shanghai Sansi Electronic Engineering Co. Ltd.
where one patent can have more than one assignee
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