Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4626363 | Cationic acrylamide emulsion polymer brine thickeners | Marie A. Piccoline | 1986-12-02 |
| 4600515 | Fluid loss control agents for drilling fluids containing divalent cations | Chester D. Szymanski | 1986-07-15 |
| 4518510 | Drilling mud dispersants | Ingrid Brase | 1985-05-21 |