4 Utility and 1 Design Patents
#9,410 in Beijing
#34,157 in China
rank by utility patentsForward Citations = 6
Company Filing History:

Douyin Vision Co., Ltd.
Beijing Tiexue Tech. Co., Ltd.
Get your Inventor Badge Today
#9,410 in Beijing
#34,157 in China
rank by utility patentsCompany Filing History:

Get your Inventor Badge Today