10 Utility and 1 Design Patents
#2,173 in Shenzhen
#12,945 in China
#406,844 in the World
rank by utility patentsForward Citations = 11
Company Filing History:

Sintai Optical (shenzhen) Co., Ltd.
Asia Optical Co., Ltd.
4. 1 out of 5,418

5. 1 out of 644

where one patent can have more than one assignee
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