Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6973975 | Universal transportable compressed air foam fire fighting system | Keith Adamson, John R. Grindley | 2005-12-13 |
| 5909775 | Dual chamber foam pump | — | 1999-06-08 |
| 5165442 | Differential valve | John R. Grindley | 1992-11-24 |
| 5009244 | Fire fighting foam mixing system | John R. Grindley | 1991-04-23 |