Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281537 | Helical coil annular access plug and abandonment | — | 2025-04-22 |
| 12152461 | Through tubing P AND A with bismuth alloys | Dan Mueller, Geir Ove Titlestad, David D. Hearn, Curtis G. Blount, Rick D. Watts +1 more | 2024-11-26 |
| 12129733 | Two-material P and A plug | — | 2024-10-29 |
| 12129735 | Tool for metal plugging or sealing of casing | David D. Hearn, Casey Hirschmann, Stewart M. Robertson, Dan Mueller | 2024-10-29 |
| 12010970 | Nano-thermite well plug | David D. Hearn, Casey Hirschmann | 2024-06-18 |
| 11905789 | Helical coil annular access plug and abandonment | — | 2024-02-20 |
| 11753898 | PandA setting with exothermic material | — | 2023-09-12 |
| 11486222 | P and A setting with exothermic material | — | 2022-11-01 |
| 11480026 | Nano-thermite well plug | David D. Hearn, Casey Hirschmann | 2022-10-25 |
| 11441384 | Tool for metal plugging or sealing of casing | David D. Hearn, Casey Hirschmann, Stewart M. Robertson, Dan Mueller | 2022-09-13 |
| 11421506 | Helical coil annular access plug and abandonment | — | 2022-08-23 |
| 11401777 | Through tubing P and A with two-material plugs | — | 2022-08-02 |
| 11377925 | Through tubing P and A with bismuth alloys | Dan Mueller, Geir Ove Titlestad, David D. Hearn, Curtis G. Blount, Rick D. Watts +1 more | 2022-07-05 |
| 11346176 | Two-matertal, P and A plug | — | 2022-05-31 |
| 11274518 | Helical coil annular access plug and abandonment | — | 2022-03-15 |
| 10871050 | Nano-thermite well plug | David D. Hearn, Casey Hirschmann | 2020-12-22 |
| 10760374 | Tool for metal plugging or sealing of casing | David D. Hearn, Casey Hirschmann, Stewart M. Robertson, Dan Mueller | 2020-09-01 |
| 10760375 | P and A setting with exothermic material | — | 2020-09-01 |
| 10738567 | Through tubing P and A with two-material plugs | — | 2020-08-11 |
| 10648279 | Helical coil annular access plug and abandonment | — | 2020-05-12 |
| 10584554 | Two-material PandA plug | — | 2020-03-10 |
| 10316612 | Two-material P and A plug | — | 2019-06-11 |
| 10260288 | Pre-positioned capping device on high pressure wells | Gordon T. Poss | 2019-04-16 |
| 9347270 | Pre-positioned capping device and diverter | Graham Alvord, Rune Woie | 2016-05-24 |
| 9255446 | Pre-positioned capping device for source control with independent management system | — | 2016-02-09 |