Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819747 | Triangular oil well drill bit for use in unconsolidated formations | Percy A. Little | 1989-04-11 |
| 4683965 | Triangular oil well drill bit for use in unconsolidated formations | Percy A. Little | 1987-08-04 |
| 4630694 | Integral blade hole opener | Percy A. Little | 1986-12-23 |