Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9052144 | Automatic sanding hopper systems and methods | Robert M. Kephart, Kenneth R. Phillips, Steven G. Huff, Kevin J. Defoor, Samuel R. Cox +1 more | 2015-06-09 |
| 4787770 | Locking device for air hose coupling devices of tractor trailers | — | 1988-11-29 |