Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8505638 | Restricted axial movement locking mechanism | Michael Dale Ezell | 2013-08-13 |
| 8002045 | Downhole tool with load diverting system and method | Michael Dale Ezell | 2011-08-23 |
| 6924745 | System and method for monitoring packer slippage | Roger L. Schultz, Russell Irving Bayh, III, Neal G. Skinner | 2005-08-02 |
| 4691775 | Isolation valve with frangible flapper element | Lee M. Lustig | 1987-09-08 |
| 4372527 | Blowout preventer | Irwin Rosenhauch | 1983-02-08 |
| 4363358 | Subsurface tubing hanger and stinger assembly | — | 1982-12-14 |
| 4305465 | Subsurface tubing hanger and stinger assembly | — | 1981-12-15 |