Wei OU YANG

City:

Beijing

Country:

China

Published Applications:

Last publication date:

2016-08-11

Top Assignees for applications by Wei OU YANG

The entities that hold a legal rights for patent applications filed by inventor OU YANG Wei:

Wei OU YANG from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

Amphiphilic reservoir protecting agent and preparation method thereof and drilling fluid

InventorID:

1617552 ⎘