Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9364868 | Adjustable stock assembly for fluid spray gun and methods | Michael J. Bullard, Curtiss G. Kennedy | 2016-06-14 |
| 8142545 | Dust separation system for use with mobile equipment | — | 2012-03-27 |
| 7281296 | Debris collection systems, vehicles, and methods | — | 2007-10-16 |
| 6887290 | Debris separation and filtration systems | Sean S. Troutt, Philip Wayne Stein | 2005-05-03 |
| 6854157 | Debris collection systems and vehicles | — | 2005-02-15 |
| 5839157 | Street sweeper pick-up head | Robert E. Field | 1998-11-24 |
| 5251652 | Street sweeper | Roger D. Star | 1993-10-12 |
| 5060334 | Street sweeper | Roger D. Star | 1991-10-29 |