Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696058 | Solids-free, essentially all-oil wellbore fluid | — | 1997-12-09 |
| 5634984 | Method for cleaning an oil-coated substrate | — | 1997-06-03 |
| 5635457 | Non-toxic, inexpensive synthetic drilling fluid | — | 1997-06-03 |
| 5629270 | Thermally stable oil-base drilling fluid | — | 1997-05-13 |
| 5556832 | Solids-free, essentially all-oil wellbore fluid | — | 1996-09-17 |
| 5333698 | White mineral oil-based drilling fluid | — | 1994-08-02 |
| 5234577 | Separation of oils from solids | — | 1993-08-10 |
| 5215596 | Separation of oils from solids | — | 1993-06-01 |
| 5213625 | Separation of oils from solids | — | 1993-05-25 |
| 5156686 | Separation of oils from solids | — | 1992-10-20 |
| 5020595 | Carbon dioxide-steam co-injection tertiary oil recovery process | — | 1991-06-04 |