Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11752462 | Effluent processing apparatus and method for a vehicle air brake charging system | Stephen Howe, David W. Perry, Fred W. Hoffman | 2023-09-12 |
| 11420137 | Effluent processing apparatus for a vehicle air brake charging system | Fred W. Hoffman, Stephen Howe, David W. Perry | 2022-08-23 |
| 10933351 | Effluent processing apparatus for a vehicle air brake charging system | Fred W. Hoffman, Stephen Howe, David W. Perry | 2021-03-02 |
| 10583382 | Effluent processing apparatus for a vehicle air brake charging system | Stephen Howe, David W. Perry, Fred W. Hoffman | 2020-03-10 |
| 10583820 | Effluent processing apparatus and method for a vehicle air brake charging system | Stephen Howe, David W. Perry, Fred W. Hoffman | 2020-03-10 |
| D629090 | Air dryer | Leonard A. Quinn | 2010-12-14 |
| D621017 | Air dryer | Leonard A. Quinn | 2010-08-03 |
| D604821 | Air dryer | Leonard A. Quinn | 2009-11-24 |
| 7285149 | Oil separator for vehicle air system | William P. Fornof, Leonard A. Quinn, Fred W. Hoffman, Gregory C. Smith | 2007-10-23 |
| 7117896 | Air system module including reservoir and mounting structure | Charles E. Eberling, Curtis Samuel Snyder, Fred W. Hoffman | 2006-10-10 |
| 7008472 | Spin-on filtering oil removal cartridge | William P. Fornof, Leonard A. Quinn | 2006-03-07 |
| 6805414 | Clamp assembly and method | Robert J. Herbst, George S. Wagner | 2004-10-19 |
| 6588856 | Modulator relay valve assembly and method | Robert J. Herbst, George S. Wagner | 2003-07-08 |
| 6254048 | Solenoid clamp | Duane R. Johnson | 2001-07-03 |
| 6209582 | 2-way collar and O-ring seal assembly | Thomas M. Huber | 2001-04-03 |