Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12291064 | Damping air spring for heavy-duty vehicle axle/suspension systems | Jeff R. Zawacki | 2025-05-06 |
| 11745557 | Damping air spring for heavy-duty vehicle axle/suspension systems | Jeff R. Zawacki | 2023-09-05 |
| 10843520 | Heavy-duty vehicle axle/suspension system with optimized damping | Jeff R. Zawacki | 2020-11-24 |
| 10449819 | Damping convoluted air spring | Michael J. Gottschalk, Matthew J. Van Meter | 2019-10-22 |
| 10118453 | Damping air spring with staged openings | — | 2018-11-06 |
| 9849745 | Vehicle suspension system with reservoir for air spring damping | R. Scott Fulton, John E. Ramsey, Kimm L. Carr, Brett L. Muckelrath, Thomas J. Long +2 more | 2017-12-26 |
| 9475355 | Tag axle suspension system with tire at lowest point when lifted | Jeffrey Layne, Christopher Mlinarich | 2016-10-25 |
| 9139061 | Vehicle suspension system with reservoir for air spring damping | — | 2015-09-22 |
| 8616565 | Self-steer lift axle suspension system having a steering return, damper and lock integrated with a steering knuckle assembly | — | 2013-12-31 |
| 7891673 | Seamless control of spring stiffness in a liquid spring system | Richard J. Meyer | 2011-02-22 |
| 7641181 | Distributed power suspension system | — | 2010-01-05 |
| 6679504 | Seamless control of spring stiffness in a liquid spring system | Richard J. Meyer | 2004-01-20 |
| 6598885 | Single valve control of damping and stiffness in a liquid spring system | Conrad Cajulis, Richard J. Meyer | 2003-07-29 |
| 6305673 | Vibration control system | Richard J. Meyer | 2001-10-23 |
| 6293530 | Compressible liquid vibration control system | Richard J. Meyer, Daniel Lamkin | 2001-09-25 |