Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262752 | Electrical switch having a two stage snap action interface for enhanced operation | Kenny Truong, Gerald W. Martin, Richard B. Porter, John Morgan Whitney | 1993-11-16 |
| 5154226 | Automatic changeover thermostat with single bi-metal and common set lever having individual heat and cool setpoint indicators | Richard B. Porter | 1992-10-13 |
| D316977 | Thermostat | Richard B. Porter | 1991-05-21 |