Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5852847 | High-speed pick-up head for a street sweeper | Christopher R. Weiss, Larry D. Granderson, Sr., Norman L. Todd | 1998-12-29 |
| 4807327 | Dirt deflector for cleaning heads | Oliver M. Julien | 1989-02-28 |