Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697461 | Rotary drill bit having a non-rotating gauge section | Alex Newton, John M. Fuller, Daniel J. Sarik | 1997-12-16 |
| 5671818 | Rotary drill bits | Alex Newton, Malcolm R. Taylor, John Martin Clegg | 1997-09-30 |
| 5651421 | Rotary drill bits | Alex Newton, Malcolm R. Taylor, John M. Fuller | 1997-07-29 |
| 5649604 | Rotary drill bits | John M. Fuller | 1997-07-22 |