19 Utility and 9 Design Patents
#238 in Guangdong
#5,963 in China
#180,334 in the World
rank by utility patentsForward Citations = 204
Company Filing History:
Zhejiang Sunny Optical Co., Ltd
North China Municipal Engineering Design & Research Institute Co., Ltd.

4. 2 out of 58

5. 2 out of 2
Foshan Huashu Robotics Co., Ltd.
where one patent can have more than one assignee
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