Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10704362 | Downhole sub with hydraulically actuable sleeve valve | Daniel Jon Themig, Kevin O. Trahan, Christopher Denis Desranleau | 2020-07-07 |
| 10030474 | Downhole sub with hydraulically actuable sleeve valve | Daniel Jon Themig, Kevin O. Trahan, Christopher Denis Desranleau | 2018-07-24 |
| 9874067 | Sliding sleeve sub and method and apparatus for wellbore fluid treatment | Daniel Jon Themig, Christopher Denis Desranleau, Kevin O. Trahan, Daniel P. Lupien, Terrance Dean Maxwell | 2018-01-23 |
| 9010447 | Sliding sleeve sub and method and apparatus for wellbore fluid treatment | Daniel Jon Themig, Christopher Denis Desranleau, Kevin O. Trahan, Daniel P. Lupien, Terrance Dean Maxwell | 2015-04-21 |
| 8757273 | Downhole sub with hydraulically actuable sleeve valve | Daniel Jon Themig, Kevin O. Trahan, Christopher Denis Desranleau | 2014-06-24 |
| RE33751 | System and method for controlled directional drilling | Bela Geczy | 1991-11-26 |
| 4962818 | Downhole motor with an enlarged connecting rod housing | — | 1990-10-16 |
| 4932482 | Downhole motor with an enlarged connecting rod housing | — | 1990-06-12 |
| 4667751 | System and method for controlled directional drilling | Bela Geczy | 1987-05-26 |