Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5520214 | Regulator and fill valve | Ronald J. Johnston, Joe Quest | 1996-05-28 |
| 4948179 | Quick connect fitting for smooth wall conduit | Ernest F. Kulikowski, Paul J. E. Fournier | 1990-08-14 |
| 4786029 | Connect-against-pressure coupling | Robert A. Laipply, Phillip G. Fuerst | 1988-11-22 |