Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10053943 | Annular sealing for use with a well | Don M. Hannegan, James W. Chambers | 2018-08-21 |
| 9845653 | Fluid supply to sealed tubulars | Don M. Hannegan, Thomas F. Bailey, Nicky A. White | 2017-12-19 |
| 9334711 | System and method for cooling a rotating control device | Don M. Hannegan, Thomas F. Bailey, Nicky A. White | 2016-05-10 |
| 8636087 | Rotating control system and method for providing a differential pressure | Don M. Hannegan, Thomas F. Bailey, Nicky A. White, Carel W. Hoyer | 2014-01-28 |
| 8347983 | Drilling with a high pressure rotating control device | Carel W. Hoyer, Don M. Hannegan, Thomas F. Bailey, Nicky A. White | 2013-01-08 |
| 5487352 | Temperature indicator for cooked meats | John R. Williams | 1996-01-30 |