Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10539001 | Automated drilling optimization | Franck T. Kpetehoto, Stephen Carey | 2020-01-21 |
| 9828845 | Automated drilling optimization | Franck T. Kpetehoto, Stephen Carey | 2017-11-28 |
| 9043152 | Realtime dogleg severity prediction | Frank Schuberth, Hanno Reckmann, John D. Macpherson | 2015-05-26 |
| 7503403 | Method and apparatus for enhancing directional accuracy and control using bottomhole assembly bending measurements | Pushkar N. Jogi, Michael Neubert, John D. Macpherson, Thomas Dahl, Volker Krueger +2 more | 2009-03-17 |
| 6030305 | Semi-automatic tensioner for a belt drive system | — | 2000-02-29 |
| 5449277 | Apparatus for packaging a compressor | — | 1995-09-12 |
| 5352098 | Turn valve control system for a rotary screw compressor | — | 1994-10-04 |
| 5318151 | Method and apparatus for regulating a compressor lubrication system | John E. Hart | 1994-06-07 |
| 5139399 | Compressor interstage coolant injector nozzle | — | 1992-08-18 |
| 4997466 | Air filter attachment for compressor | — | 1991-03-05 |
| 4957274 | Position sensor for a rotary valve | Paul A. Kirkpatrick | 1990-09-18 |