Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671810 | Composition and method for relief of differential sticking during drilling | Richard M. Hodge, Thomas Daves, Thomas F. Carter | 1997-09-30 |
| 5605879 | Olefin isomers as lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluids | David Schwertner | 1997-02-25 |