30 Utility and 5 Design Patents
#606 in Shenzhen
#3,444 in China
#92,263 in the World
rank by utility patentsForward Citations = 301
Company Filing History:

Sintai Optical (shenzhen) Co., Ltd.
Asia Optical Co., Ltd.
4. 3 out of 19,756

5. 3 out of 5,412

where one patent can have more than one assignee
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