David Barker

City:

Houston, Texas

Country:

United States

Published Applications:

Last publication date:

2024-10-10

Top Assignees for applications by David Barker

The entities that hold a legal rights for patent applications filed by inventor Barker David:

David Barker from Houston, US has applied for patents for these inventions. The list has both pending applications and granted patents:

TURBULENCE REDUCING DOWNHOLE APPARATUS

Drilling motor interior valve

InventorID:

2897474 ⎘