Beijing
China
3
2019-07-25
The entities that hold a legal rights for patent applications filed by inventor AN Weiqing:
Weiqing AN from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
High-temperature, high-pressure, and low-velocity gas microtube viscosity measuring apparatus and measuring method thereof
#2 | 2018-12-27Apparatus and method for measuring apparent permeability of tight rock core
#3 | 2018-05-24High pressure dynamic micro differential pressure gauge, and methods for using and checking the same
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