Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425593 | Aluminum frame hanger for axle/suspension systems | Eric W. Fabris | 2002-07-30 |
| 6416069 | Underbeam axle lift assembly | — | 2002-07-09 |
| 6213507 | Vehicle trailer frame cross member/suspension assembly mount | Phillippi R. Pierce | 2001-04-10 |
| 5720489 | Movable subframe for tractor-trailers | Phillipi Randsome Pierce, Scott Dilling | 1998-02-24 |
| 5649719 | Linkage suspension system | Gareth Wallace, Tjong T. Lie, Michael J. Keeler, Michael Gottshalk, Allen Hatch +2 more | 1997-07-22 |
| 5642896 | Locking pins for movable subframe of tractor-trailers | Phillippi R. Pierce, Scott Dilling | 1997-07-01 |
| 5366237 | Axle suspension systems | Scott Dilling, Michael J. Keeler, Joseph M. Ross | 1994-11-22 |
| 5037126 | Lightweight beam suspension system | Michael J. Gottschalk, Michael J. Keeler, Ervin K. Van Denberg | 1991-08-06 |
| 4783096 | Stacked airbag wheeled vehicle suspension system | Ervin K. VanDenberg | 1988-11-08 |