Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941983 | Fluid loss-reducing additives for oil-based well working fluids | John Martin Farrar, Margaret H., all of Graham | 1990-07-17 |
| 4501672 | Organic compounds | David L. Connell | 1985-02-26 |
| 4399050 | Bleach composition | John Bentham, David L. Connell | 1983-08-16 |