Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4256089 | Drain down freeze prevention control system for a solar collector | James B. Carr | 1981-03-17 |
| 4242713 | Triac output asymmetry detector | Edward W. Goodrich, Dale Kline | 1980-12-30 |