Robert W. Spears

City:

Sylmar, California

Country:

United States

Published Applications:

Last publication date:

2007-11-29

Top Assignees for applications by Robert W. Spears

The entities that hold a legal rights for patent applications filed by inventor Spears Robert W.:

Robert W. Spears from Sylmar, US has applied for patents for these inventions. The list has both pending applications and granted patents:

Check Valve With Oblong Hinge Openings

Check valve with pressure relief feature

InventorID:

4525536 ⎘