Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5943231 | Computer controlled separator device | — | 1999-08-24 |
| 5541831 | Computer controlled separator device | — | 1996-07-30 |
| 5449063 | Modified drive system for endless belt conveyors with rollers having driving, supporting and aligning features | — | 1995-09-12 |
| 5282532 | Modified drive system for endless belt conveyors with rollers having driving, supporting and aligning features | — | 1994-02-01 |
| 5160020 | Drive system for endless belt conveyors with rollers having driving, supporting and aligning features | — | 1992-11-03 |
| 5073095 | Whisper quiet electromagnetic fluid pump | — | 1991-12-17 |
| 4829642 | Method of making a crankshaft | David A. Coan | 1989-05-16 |
| 4793918 | Gravity separator | — | 1988-12-27 |