Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690849 | Current control circuit for improved power application and control of thermoelectric devices | Roger S. DeVilbiss, Harry C. Powell, Jr. | 1997-11-25 |
| 5682748 | Power control circuit for improved power application and temperature control of low voltage thermoelectric devices | Roger S. DeVilbiss, Harry C. Powell, Jr. | 1997-11-04 |
| 5648716 | Power control circuit for a battery charger | Roger S. DeVilbiss | 1997-07-15 |