Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6042309 | Tool bit with undercut hook radius | — | 2000-03-28 |
| 5868531 | Tool bit with undercut hook radius | — | 1999-02-09 |
| 5671646 | Tube end squaring tool | Henry Astle | 1997-09-30 |
| D383960 | Tube end squaring tool | Henry Astle | 1997-09-23 |
| 5515756 | Roller cutter module with force equalizer | Henry Astle | 1996-05-14 |
| 4981055 | Portable facing tool | Jerald VanderPol | 1991-01-01 |
| D303487 | Portable pipe end preparation tool with right angle feed control | Terry B. Linton | 1989-09-19 |
| 4784028 | Mandrel assembly for a portable lathe | — | 1988-11-15 |
| 4646413 | Tube extractor drill jig | Lawson H. Nall | 1987-03-03 |