Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346835 | Instantaneous water heater gas control valve | Ursus Trotter | 1982-08-31 |
| 4184457 | Water flow responsive control for a liquid heater | Ursus Trotter | 1980-01-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346835 | Instantaneous water heater gas control valve | Ursus Trotter | 1982-08-31 |
| 4184457 | Water flow responsive control for a liquid heater | Ursus Trotter | 1980-01-22 |