Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578647 | Sealing structure for a rock drill bit | Nigel Page | 2003-06-17 |
| 6357540 | Rotary drill bit with lip seal in roller cone bit | Nigel Page | 2002-03-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578647 | Sealing structure for a rock drill bit | Nigel Page | 2003-06-17 |
| 6357540 | Rotary drill bit with lip seal in roller cone bit | Nigel Page | 2002-03-19 |