Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6102486 | Frustum cutting bit arrangement | — | 2000-08-15 |
| 6044919 | Rotary spade drill arrangement | — | 2000-04-04 |
| 6026918 | Roof bolt bit | — | 2000-02-22 |
| 6026916 | Rotary drill arrangement | — | 2000-02-22 |
| 5975811 | Cutting insert cartridge arrangement | — | 1999-11-02 |
| 5873423 | Frustum cutting bit arrangement | — | 1999-02-23 |
| 4993888 | Cutting tool arrangement | — | 1991-02-19 |
| 4893967 | Cutting tool arrangement | — | 1990-01-16 |
| 4828225 | Power cable retriever | William Owen, Robert E. Bell, Douglas Chase | 1989-05-09 |
| 4828436 | Cutting tool cartridge arrangement | — | 1989-05-09 |
| 4682916 | Cutting insert arrangement | — | 1987-07-28 |
| 4621955 | Cone shaped cutting insert | — | 1986-11-11 |
| 4477211 | Rotary tool cutting cartridge | — | 1984-10-16 |
| 4378184 | Rotary tool cutting insert | — | 1983-03-29 |
| 4322189 | Coolant control for milling tools | — | 1982-03-30 |
| 4320999 | Coolant guide for end mill | — | 1982-03-23 |