Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8807157 | Hose reels | Nathan Marchant | 2014-08-19 |
| 8119025 | Anti-icing composition | — | 2012-02-21 |
| 5654064 | Clay liner for steep slopes | William J. Simpson | 1997-08-05 |
| 5564864 | Clay liner for steep slopes | William J. Simpson | 1996-10-15 |
| 5360294 | Bentonite liner with drainage system protection | Richard Carriker, Thomas Hauck | 1994-11-01 |