Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10919354 | Tandem suspension system | Rajakumar Subbarayalu, John Hinz | 2021-02-16 |
| 10618581 | Wear pads for slider suspension | John Hinz | 2020-04-14 |
| 7926836 | Elastomeric spring vehicle suspension | Shawn D. Noble, Ashley Thomas Dudding, Christopher W. Forrest, Michael Brannigan, Michael P. Robinson | 2011-04-19 |
| 7722064 | Tapered joint for vehicle suspension components | Pedro Ramses Banda Marquez | 2010-05-25 |
| 7475892 | Axle clamp assembly top pad and suspensions incorporating same | Ashley Thomas Dudding, Jason Steby Thomas | 2009-01-13 |
| 6945548 | Air spring and air spring mounting assembly | Ashley Thomas Dudding, Jason Steby Thomas | 2005-09-20 |
| 6851689 | Vehicle suspension | Ashley Thomas Dudding, Christopher W. Forrest, Jason Steby Thomas, Pedro Ramses Banda Marquez, Mark Dankow | 2005-02-08 |
| 6845782 | Multiple tank circulating fuel system | Alan D. Osterkil | 2005-01-25 |
| 6430921 | System moisture absorber | Michael J. Eifert | 2002-08-13 |
| 6428027 | Front axle air suspension | — | 2002-08-06 |
| 6386525 | Dual volume air spring for suspensions | — | 2002-05-14 |
| 6152470 | Vehicle access step assembly | Gerald W. Askew | 2000-11-28 |
| 6099007 | Vehicle access step assembly | Gerald W. Askew | 2000-08-08 |
| 6086077 | Steer axle suspension with air springs | — | 2000-07-11 |
| 6076844 | Vehicle access step assembly | Gerald W. Askew | 2000-06-20 |
| 6029989 | Vehicle access step assembly | Gerald W. Askew | 2000-02-29 |
| 5678845 | Stabilizer for a steer axle air ride suspension of a vehicle | — | 1997-10-21 |
| 5542652 | Anti-friction pad for a bushed pivot point connection of a main leaf spring and a secondary leaf spring | — | 1996-08-06 |
| 5392815 | Gradational tube bundle flow conditioner for providing a natural flow profile to facilitate accurate orifice metering in fluid filled conduits | — | 1995-02-28 |
| 5378006 | Slider suspension for semi-trailers | Donald D. Critten | 1995-01-03 |