Wuhan
China
3
2017-12-14
The entities that hold a legal rights for patent applications filed by inventor Chen Yan:
Yan Chen from Wuhan, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Method and device for measuring optical signal-to-noise ratio
#2 | 2016-02-25OPTICAL SIGNAL-TO-NOISE RATIO MEASURING METHOD
#3 | 2010-04-225,6-dimethyl xanthone-4-acetic acid derivatives and method of preparing the same
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