Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4610401 | Trimetal pulverizer roll | — | 1986-09-09 |
| 4610073 | Trimetal pulverizer roll and a method of manufacture thereof | — | 1986-09-09 |
| 4605174 | Vane wheel arrangement with nihard wear plates | David Kohler | 1986-08-12 |
| 4602745 | Coverging/diverging orifice assembly for embodiment in a bowl mill | David Kohler | 1986-07-29 |
| 4523721 | Bowl mill with primary classifier assembly | David Kohler | 1985-06-18 |
| 4372496 | Electronic controller of hydraulic pressure for journal loading of bowl mill | — | 1983-02-08 |
| 4234132 | Bowl mill with air deflector means | — | 1980-11-18 |