Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688327 | Auxiliary axle and suspension assembly | Richard Conaway, Daniel R. Dykstra, Marc Johnson, Boyd Freeman | 2017-06-27 |
| 9481416 | Auxiliary axle and suspension assembly | Richard Conaway, Daniel R. Dykstra, Marc Johnson, Boyd Freeman | 2016-11-01 |
| 9290221 | Auxiliary axle and suspension assembly | Richard Conaway, Daniel R. Dykstra, Marc Johnson, Boyd Freeman | 2016-03-22 |
| 8967639 | Auxiliary axle and suspension assembly | Richard Conaway, Daniel R. Dykstra, Marc Johnson, Boyd Freeman | 2015-03-03 |
| 7281764 | Tension control mechanism for chair | — | 2007-10-16 |