Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8393020 | Bath and shower support system | — | 2013-03-12 |
| 7877824 | Telescoping support bar | Carolyn R. Grant | 2011-02-01 |
| 4673127 | Remote control means for heating/cooling devices | — | 1987-06-16 |
| 4646962 | Rotational means for automatic damper means | — | 1987-03-03 |
| 4553695 | Automatic damper means for air ducts | — | 1985-11-19 |
| 4518116 | Automatic damper operator | — | 1985-05-21 |
| 4515306 | Four-terminal zone thermostat | — | 1985-05-07 |
| 4506829 | Variable speed damper means | — | 1985-03-26 |
| 4506828 | Reversible damper means | — | 1985-03-26 |
| 4506825 | Solenoid operated damper blades | — | 1985-03-26 |
| 4488567 | Automatic valve closer | — | 1984-12-18 |
| 4417687 | Multi-blade automatic air register damper | — | 1983-11-29 |
| 4413774 | Direct drive air register damper | — | 1983-11-08 |
| 4401260 | Self-operated air register damper | — | 1983-08-30 |
| 4381850 | Automatic air register damper | — | 1983-05-03 |