Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092613 | Rotary drill bits | Douglas Caraway, Malcolm R. Taylor, Tom Scott Roberts, Steven J. Taylor, Graham Watson | 2000-07-25 |
| 5992547 | Rotary drill bits | Douglas Caraway, Malcolm R. Taylor, Tom Scott Roberts, Steven J. Taylor, Graham Watson | 1999-11-30 |
| 5967246 | Rotary drill bits | Douglas Caraway, Malcolm R. Taylor, Tom Scott Roberts, Steven J. Taylor, Graham Watson | 1999-10-19 |
| 5904213 | Rotary drill bits | Douglas Caraway, Malcolm R. Taylor, Tom Scott Roberts, Steven J. Taylor, Graham Watson | 1999-05-18 |
| 5819862 | Downhole components for use in subsurface drilling | Terry R. Matthias, Haydn R. Lamb | 1998-10-13 |
| 4280783 | Lost motion linkage assembly for a front loader | — | 1981-07-28 |