Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951581 | Spin-on desiccant cartridge with integral oil removal filter | William P. Fornof, Leonard A. Quinn | 2005-10-04 |
| 6786953 | Spin-on desiccant cartridge with integral oil removal filter | William P. Fornof, Leonard A. Quinn | 2004-09-07 |
| 6527839 | Spin-on filtering oil removal cartridge | William P. Fornof | 2003-03-04 |
| 6514051 | Oil filter used in combination with a heat generating element | William P. Fornof | 2003-02-04 |
| 6358291 | Trailer air dryer with bypass valving and service indicator | Leonard A. Quinn, Richard J. Conklin, Fred W. Hoffman | 2002-03-19 |
| 5286282 | Continuous flow air dryer with double helix split desiccant bed | David J. Goodell | 1994-02-15 |
| 4589535 | Fan clutch with replaceable plate carrier member | John L. Hall, Dennis R. Shamine | 1986-05-20 |
| 4483430 | Clutch drive | Richard W. Carmichael, Kevin Johnson | 1984-11-20 |
| 4348062 | Tractor air brake proportioning system | — | 1982-09-07 |