Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7810583 | Drilling systems and methods | Robert Nicholas Worrall | 2010-10-12 |
| 4771646 | Rotating and indexing mechanism | Sandy Cow, Robert O. Lilley | 1988-09-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7810583 | Drilling systems and methods | Robert Nicholas Worrall | 2010-10-12 |
| 4771646 | Rotating and indexing mechanism | Sandy Cow, Robert O. Lilley | 1988-09-20 |