2 Utility Patents
#334 in Chongqing
#62,277 in China
Forward Citations = 0
Company Filing History:
Chongqing Institute of East China Normal University

Roi Optoelectronics Technology Co, Ltd.
4. 1 out of 10
Yunnan Huapu Quantum Material Co., Ltd
5. 1 out of 2
Nanjing Roi Optoelectronics Technology Co., Ltd.
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