Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7145298 | Compact battery powered heavy roll mover | — | 2006-12-05 |
| 5895510 | Air filter assembly | Patrick G. Butler, Burt O. Browning, Paul Andrew Rogers, Timothy J. Winkeler | 1999-04-20 |