Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9518463 | Core capture and recovery from unconsolidated or friable formations and methods of use | James H. Hedges | 2016-12-13 |
| 8813873 | Enhanced smear effect fracture plugging process for drilling systems | Paul D. Scott, Rick D. Watts | 2014-08-26 |
| 5076362 | Subterranean formation permeability contrast correction methods | — | 1991-12-31 |
| 4580504 | Method and apparatus for the recovery of hydrocarbons | Riley B. Needham | 1986-04-08 |
| 4515093 | Method and apparatus for the recovery of hydrocarbons | Riley B. Needham | 1985-05-07 |
| 4504211 | Combination of fuels | — | 1985-03-12 |
| 4500281 | Burning of fuels | — | 1985-02-19 |