Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12215565 | Compact downhole tool | Donald Jonathan Greenlee | 2025-02-04 |
| 11946333 | Cup plug having a large flow-through inside diameter | Donald Jonathan Greenlee | 2024-04-02 |
| 11697975 | Compact downhole tool | Donald Jonathan Greenlee | 2023-07-11 |
| 11459839 | Sleeve for downhole tools | — | 2022-10-04 |
| 11371312 | Cup plug having a large flow-through inside diameter | Donald Jonathan Greenlee | 2022-06-28 |
| 11365600 | Compact downhole tool | Donald Jonathan Greenlee | 2022-06-21 |
| 11015415 | Filament-reinforced composite material with load-aligned filament windings | Donald Jonathan Greenlee, Brian David Oligschlaeger | 2021-05-25 |
| 10487615 | Cup plug having a large flow-through inside diameter | Donald Jonathan Greenlee | 2019-11-26 |
| 10400535 | Retrievable downhole tool | — | 2019-09-03 |
| 9915114 | Retrievable downhole tool | — | 2018-03-13 |
| 9551197 | Hydrostatic setting tool | Donald Jonathan Greenlee | 2017-01-24 |
| 9121240 | Hydrostatic setting tool | Donald Jonathan Greenlee | 2015-09-01 |
| 9004160 | Downhole tool apparatus with slip plate and wedge | Donald Jonathan Greenlee | 2015-04-14 |
| 8893780 | Downhole apparatus with packer cup and slip | Donald Jonathan Greenlee | 2014-11-25 |
| 8336635 | Downhole apparatus with packer cup and slip | Donald Jonathan Greenlee | 2012-12-25 |
| 8113276 | Downhole apparatus with packer cup and slip | Donald Jonathan Greenlee | 2012-02-14 |
| 5148866 | Well tool anchoring mechanism with improved slip release | — | 1992-09-22 |
| 5129453 | Quick set well packer | — | 1992-07-14 |
| 5103901 | Hydraulically operated well packer | — | 1992-04-14 |
| 4856583 | Apparatus for treating well bores | Willie C. Skinner, Sr. | 1989-08-15 |
| 4791992 | Hydraulically operated and released isolation packer | Michael Pitts | 1988-12-20 |
| 4750559 | Retrievable anchor assembly | Lee M. Lustig | 1988-06-14 |
| 4702313 | Slip and slip assembly for well tools | Lee M. Lustig | 1987-10-27 |
| 4593765 | Tubing resettable well tool | — | 1986-06-10 |
| 4583590 | Slip releasing apparatus | David G. Dearing, Andrew J. Tucker | 1986-04-22 |