Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7950469 | Modular well tool system | Ronald W. McGregor | 2011-05-31 |
| 7694745 | Modular well tool system | Ronald W. McGregor | 2010-04-13 |
| 6691788 | Retrievable packer having a positively operated support ring | — | 2004-02-17 |
| 4838348 | Well packer brake | — | 1989-06-13 |
| 4583590 | Slip releasing apparatus | Donald Roy Greenlee, Andrew J. Tucker | 1986-04-22 |