Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6138764 | System and method for deploying a wireline retrievable tool in a deviated well | Marvin A. Keller, Peter Schrenkel | 2000-10-31 |
| 6138765 | Packer assembly for use in a submergible pumping system | W. Keith Russell, David L. Fielder, Russell Bookout | 2000-10-31 |
| 5660520 | Downhole centrifugal pump | — | 1997-08-26 |