Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9969229 | Variable rate auxiliary leaf engagement | — | 2018-05-15 |
| 9630467 | Leaf spring assembly | Jian Chen | 2017-04-25 |
| 9186951 | Height adjustable damping device | John K. Dagg | 2015-11-17 |
| 9174507 | Leaf spring assembly | Jian Chen | 2015-11-03 |
| 7484745 | Brinelling bushing joint assembly | John T. Monaghan, Keith E. Olson | 2009-02-03 |
| 7150451 | Air spring and jounce shock assembly | Yunjun Li, Jeremy W. Short | 2006-12-19 |
| 7083176 | Wheel alignment arrangements for vehicles | Scott A. Kolp | 2006-08-01 |
| 6425595 | Automotive suspension system incorporating splay reduction device | Frank N. Casali | 2002-07-30 |
| 6398179 | Fastener-less spring assembly | — | 2002-06-04 |