Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455474 | High performance environmentally friendly, low temperature, drilling fluids | Robert J. Wittenbrink, Charles J. Mart, Bruce R. Cook | 2002-09-24 |
| 6375830 | Isoparaffinic base stocks by dewaxing fischer-tropsch wax hydroisomerate over Pt/H-mordenite | Janet Renee Clark, Robert J. Wittenbrink, Albert E. Schweizer | 2002-04-23 |