Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823413 | Combined pneumatic switch and air control for use in whirpool baths | Philip E. Chalberg, Paul N. Kenchel | 1989-04-25 |
| 4595825 | Thermostatically controlled electric water heater | — | 1986-06-17 |
| 4501232 | Pool or spa water heater | Sangchol An | 1985-02-26 |
| 4460944 | Heat sensitive pool light | Joe Mendoza | 1984-07-17 |
| 4421066 | High efficiency boiler | — | 1983-12-20 |