Beijing
China
6
2020-07-30
The entities that hold a legal rights for patent applications filed by inventor Ouyang Wei:
Wei Ouyang from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
CoFeO-WTRs composite magnetic catalyst, preparation method and application thereof
#2 | 2020-05-14Method and apparatus for processing vehicle collision, vehicle, device and storage medium
#3 | 2017-11-23Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wells
#4 | 2017-10-17High-density water-based drilling fluid suitable for horizontal shale gas wells
#5 | 2016-11-17Bionic drilling fluid and preparation method thereof
#6 | 2016-08-11BIONIC SHALE INHIBITOR AND PREPARATION METHOD THEREOF AND DRILLING FLUID
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