Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12152461 | Through tubing P AND A with bismuth alloys | Dan Mueller, Geir Ove Titlestad, Curtis G. Blount, Rick D. Watts, Randall S. Shafer +1 more | 2024-11-26 |
| 12129735 | Tool for metal plugging or sealing of casing | Casey Hirschmann, Randall S. Shafer, Stewart M. Robertson, Dan Mueller | 2024-10-29 |
| 12010970 | Nano-thermite well plug | Casey Hirschmann, Randall S. Shafer | 2024-06-18 |
| 11480026 | Nano-thermite well plug | Casey Hirschmann, Randall S. Shafer | 2022-10-25 |
| 11441384 | Tool for metal plugging or sealing of casing | Casey Hirschmann, Randall S. Shafer, Stewart M. Robertson, Dan Mueller | 2022-09-13 |
| 11377925 | Through tubing P and A with bismuth alloys | Dan Mueller, Geir Ove Titlestad, Curtis G. Blount, Rick D. Watts, Randall S. Shafer +1 more | 2022-07-05 |
| 10871050 | Nano-thermite well plug | Casey Hirschmann, Randall S. Shafer | 2020-12-22 |
| 10760374 | Tool for metal plugging or sealing of casing | Casey Hirschmann, Randall S. Shafer, Stewart M. Robertson, Dan Mueller | 2020-09-01 |
| 10255810 | Method and system for a motor vehicle | — | 2019-04-09 |
| 9371694 | Permanent bypass whipstock assembly for drilling and completing a sidetrack well and preserving access to the original wellbore | Lamar L. Gantt, Dan E. Venhaus, John G. Eller | 2016-06-21 |
| 8430187 | Directional sidetrack well drilling system | — | 2013-04-30 |
| 8256535 | Mill-through tailpipe liner exit and method of use thereof | Lamar L. Gantt, Howard Gober | 2012-09-04 |
| 6318480 | Drilling of laterals from a wellbore | — | 2001-11-20 |
| 6257331 | Downhole setting tool | Curtis G. Blount | 2001-07-10 |
| 6176327 | Method and toolstring for operating a downhole motor | — | 2001-01-23 |
| 6032737 | Method and system for increasing oil production from an oil well producing a mixture of oil and gas | Jerry L. Brady, Mark D. Stevenson, John M. Klein, James L. Cawvey | 2000-03-07 |
| 5944101 | Apparatus for milling a window in well tubular | — | 1999-08-31 |
| 5794697 | Method for increasing oil production from an oil well producing a mixture of oil and gas | John R. Wolflick, James L. Cawvey, Jerry L. Brady, John Whitworth | 1998-08-18 |
| 5725060 | Mill starting device and method | Curtis G. Blount, Lamar L. Gantt, Gregory S. Walz | 1998-03-10 |
| 5265675 | Well conduit cutting and milling apparatus and method | Charles M. Hightower, Stephen Ward, Charles D. Hailey | 1993-11-30 |
| 5195591 | Permanent whipstock and placement method | Curtis G. Blount | 1993-03-23 |
| 5113703 | Tubing end locating apparatus for wellbores | — | 1992-05-19 |
| 4913229 | Coupling for releasing tubing strings from downhole tools | — | 1990-04-03 |
| 4899320 | Downhole tool for determining in-situ formation stress orientation | Eric S. Pasternack, Daniel J. Segalman | 1990-02-06 |
| 4762186 | Medium curvature directional drilling method | James A. Dech, Frank J. Schuh, John H. Striegler | 1988-08-09 |