Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6984611 | Spotting fluid for differential sticking | Kenneth W. Pober | 2006-01-10 |
| 6737385 | Well drilling and servicing fluids and methods of removing filter cake deposited thereby | Bradley L. Todd, B. Raghava Reddy, James V. Fisk, Jr. | 2004-05-18 |
| 6662871 | Spotting fluid for differential sticking | Kenneth W. Pober | 2003-12-16 |
| 6435276 | Spotting fluid for differential sticking | Kenneth W. Pober | 2002-08-20 |
| 6422314 | Well drilling and servicing fluids and methods of removing filter cake deposited thereby | Bradley L. Todd, B. Raghava Reddy, James V. Fisk, Jr. | 2002-07-23 |
| 4280915 | Salt stable lubricant for water base drilling fluids | — | 1981-07-28 |