W. Douglas Obal

City:

Vail, Arizona

Country:

United States

Published Applications:

Last publication date:

2012-09-27

Top Assignees for applications by W. Douglas Obal

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

W. Douglas Obal from Vail, US has applied for patents for these inventions. The list has both pending applications and granted patents:

Process for forming a non-stick surface on the interior surface of a pipe

System of pipes for use in oil wells

Lined Pipes for Conveying Chemicals

Process for forming a nonstick surface on the interior surface of a pipe

InventorID:

3261793 ⎘