Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5900176 | Protective device for solar hot water systems | Friedrich Edward Berrer | 1999-05-04 |
| 5805767 | Electronically-controlled heater | Gary Stephen Jouas, Guy DeLuca, Herbert K. Streich | 1998-09-08 |