Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8485543 | Independent suspension and steering assembly | John Hinz, Richard Conaway | 2013-07-16 |
| 7984657 | Method for operating a torque system configured to tighten a series of fasteners | Lynn Ann DeRose, Janet Sue Bennett, James Nelson Bratton, Michael Orlando Cimini, Douglas Forman +4 more | 2011-07-26 |
| 7971890 | Independent suspension assembly | — | 2011-07-05 |
| 7854438 | Suspension system with swaged axle and welded arm brackets and method of manufacture | — | 2010-12-21 |
| 7520515 | Steer axle suspension | — | 2009-04-21 |
| 7328908 | Steer axle and method of making the same | Sean Barber, Dennis Dauber, David G. Moses | 2008-02-12 |
| 7195260 | Steer axle suspension | — | 2007-03-27 |
| 6471223 | Auxiliary lift axle suspension | — | 2002-10-29 |
| 6398236 | Lift axle suspension with axle reservoir | — | 2002-06-04 |
| 6073946 | Trailing arm suspension | — | 2000-06-13 |
| 6062578 | Trailing arm suspension | — | 2000-05-16 |
| 6003885 | Axle lift mechanism | — | 1999-12-21 |
| 5921532 | Air spring with internal support member | William C. Pierce, John Michael Douglass, Gregory Galazin, Daniel Greenzweig, William J. Hicks | 1999-07-13 |
| 5676389 | Slider suspension with mud flap mounting bracket assembly | — | 1997-10-14 |
| 5639110 | Trailing arm suspension | William C. Pierce | 1997-06-17 |
| 5588665 | Trailing arm suspension with lever arm | William C. Pierce | 1996-12-31 |
| 5192101 | Lock mechanism for an axle lift suspension | — | 1993-03-09 |
| 5058917 | Two-stage retractable suspension | — | 1991-10-22 |
| 4991872 | Low-bed trailer suspension system | — | 1991-02-12 |