Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4648551 | Adaptive blower motor controller | Kevin D. Thompson, Gary W. Ballard | 1987-03-10 |
| 4638942 | Adaptive microprocessor control system and method for providing high and low heating modes in a furnace | Gary W. Ballard | 1987-01-27 |