Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864270 | Thermostatic controller for waterbed heater | — | 1989-09-05 |
| 4824013 | Temperature controller | — | 1989-04-25 |
| 4775100 | Line voltage setback thermostat | Eugene M. Shanahan, Robert E. Smith, III | 1988-10-04 |