Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6973975 | Universal transportable compressed air foam fire fighting system | John R. Grindley, Robert M. Grindley | 2005-12-13 |
| 5538027 | Pressure balancing foam valve | John R. Grindley | 1996-07-23 |
| 5443409 | Water saddle | — | 1995-08-22 |