Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5865915 | Bi-directional anti-slip drive wheel assembly | Robert H. Owen, Walter Creutz, Devlin J. Barnes, Bruce E. Harrison | 1999-02-02 |
| 5716107 | Wheel assembly | Brian G. Parker, Albert Selen, Bruce E. Harrison | 1998-02-10 |