John E. Campbell

City:

Houton, Texas

Country:

United States

Published Applications:

Last publication date:

2013-08-08

Top Assignees for applications by John E. Campbell

The entities that hold a legal rights for patent applications filed by inventor Campbell John E.:

John E. Campbell from Houton, US has applied for patents for these inventions. The list has both pending applications and granted patents:

Extended whipstock and mill assembly

InventorID:

6384205 ⎘