31 Utility and 11 Design Patents
#573 in Shenzhen
#3,277 in China
#87,320 in the World
rank by utility patentsForward Citations = 291
Company Filing History:
Appotronics Corporation Limited
Shenzhen Grandsun Electronic Co., Ltd.
Shenzhen Voxtech Co., Ltd.
4. 3 out of 4,764

5. 3 out of 5,389

where one patent can have more than one assignee
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