Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455474 | High performance environmentally friendly, low temperature, drilling fluids | Robert J. Wittenbrink, Charles J. Mart, Daniel Francis Ryan | 2002-09-24 |
| 6409913 | Naphtha desulfurization with reduced mercaptan formation | Janet Renee Clark, Michele S. Touvelle, Thomas R. Halbert, Garland B. Brignac, William C. Baird, Jr. | 2002-06-25 |
| 6387249 | High temperature depressurization for naphtha mercaptan removal | Richard H. Ernst, Richard A. Demmin, John P. Greeley | 2002-05-14 |
| 6352640 | Caustic extraction of mercaptans (LAW966) | Richard H. Ernst, Mark A. Greaney | 2002-03-05 |