DAVID BARTELS

City:

Edmonton

Country:

Canada

Published Applications:

Last publication date:

2022-10-13

Top Assignees for applications by DAVID BARTELS

The entities that hold a legal rights for patent applications filed by inventor BARTELS DAVID:

DAVID BARTELS from Edmonton, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

Drive Shaft Assembly for Downhole Drilling and Method for Using Same

Drive shaft assembly for downhole drilling and method for using same

InventorID:

4998823 ⎘