Issued Patents 2020
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851613 | Two-part restriction element for large-bore downhole isolation tool and method | Michael D. Wroblicky, Kevin R. George, John T. Hardesty | 2020-12-01 |
| 10704357 | Device and method for opening and stopping a toe valve | John T. Hardesty, Kevin R. George | 2020-07-07 |
| 10704358 | Device and method for opening and stopping a toe valve | John T. Hardesty, Kevin R. George | 2020-07-07 |
| 10689948 | Electronic time delay apparatus and method | John T. Hardesty, Paul Andrew Church, Iain MacLeod, Andrew John Elrick, Peter Alan Joiner | 2020-06-23 |
| 10641068 | Perforating gun system and method | John T. Hardesty, Wenbo Yang | 2020-05-05 |
| 10584557 | Debris preventing downhole air lock device and method | Raymond C. Shaffer, Kevin R. George | 2020-03-10 |