Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981023 | Air conditioning and heat pump system | Clyde Schafer | 1991-01-01 |
| 4791688 | Jet pump macerator pump sewage handling system | P. A. Saigh | 1988-12-20 |
| 4678116 | Water heater | Clyde Schafer | 1987-07-07 |
| 4586547 | Ball valve purge device for tank cars | Stephen F. Fields | 1986-05-06 |