11 Utility and 4 Design Patents
#4,060 in Beijing
#11,538 in China
#363,407 in the World
rank by utility patentsForward Citations = 25
Company Filing History:
Shenzhen Shadow Crown Technology Co., Ltd
Chongqing Boe Optoelectronics Technology Co., Ltd.
China Oilfield Services, Limited
4. 3 out of 18,125

5. 2 out of 29

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