Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38151 | Rotatable cutting bit | Neil Portnoff | 2003-06-24 |
| 4865392 | Rotatable cutting bit | Neil Portnoff | 1989-09-12 |
| 4725099 | Rotatable cutting bit | Neil Portnoff | 1988-02-16 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38151 | Rotatable cutting bit | Neil Portnoff | 2003-06-24 |
| 4865392 | Rotatable cutting bit | Neil Portnoff | 1989-09-12 |
| 4725099 | Rotatable cutting bit | Neil Portnoff | 1988-02-16 |