Beijing
China
5
2023-11-02
The entities that hold a legal rights for patent applications filed by inventor REN Zhangyu:
Zhangyu REN from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
System and method for testing stress strain of porous rock under fluid-solid coupling effects
#2 | 2021-11-04Automatic coal mining machine and fluidized coal mining method
#3 | 2021-01-07Mine field layout method suitable for fluidized mining of coal resources
#4 | 2020-08-04Transparent constraint apparatus for normal deformation of planar model
#5 | 2019-12-05Method for measuring dynamic stress field evolution law of complex heterogeneous structure
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