Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5934373 | Apparatus and method for monitoring underground fracturing | Norman R. Warpinski, Paul T. Branagan, Roy H. Wilmer | 1999-08-10 |
| 5121993 | Triaxial thermopile array geo-heat-flow sensor | Charles R. Carrigan, Harry C. Hardee, Gerald D. Reynolds | 1992-06-16 |