Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8517693 | Multi-compressor string with multiple variable speed fluid drives | Christopher G. Holt | 2013-08-27 |
| 8381617 | Dual end gear fluid drive starter | Christopher G. Holt | 2013-02-26 |
| 7970750 | Category searching | Surendra Goel | 2011-06-28 |
| 7523103 | Category searching | Surendra Goel | 2009-04-21 |
| 7007008 | Category searching | Surendra Goel | 2006-02-28 |
| 6237159 | Hats for glasses | — | 2001-05-29 |
| 5668955 | Controller for accessing services from multiple providers of services | Ernest deCiutiis | 1997-09-16 |
| 4409825 | Down hole steam quality measurement | S. Randall Whitt | 1983-10-18 |
| 4296814 | Method for thermally insulating wellbores | John L. Stalder | 1981-10-27 |
| 4265310 | Fracture preheat oil recovery process | Michael W. Britton, Jack McDaniel, Harry A. Wahl | 1981-05-05 |
| 4185693 | Oil shale retorting from a high porosity cavern | Robert E. Crumb, Gary C. Young | 1980-01-29 |