Beijing
China
5
2025-08-28
The entities that hold a legal rights for patent applications filed by inventor Ma Chen:
Chen Ma from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
MALEATE OF NICOTINYL ALCOHOL ETHER DERIVATIVE, CRYSTAL FORM THEREOF, AND APPLICATION THEREOF
#2 | 2024-02-22Automatic test method and apparatus, electronic device, and storage medium
#3 | 2019-12-05Method, apparatus and system for testing intelligent voice device
#4 | 2019-07-18Composite probiotic lactic acid bacteria powder and preparation method and use thereof
#5 | 2015-03-12Method for manipulating folders and apparatus thereof
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