Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8037931 | Hybrid water heating system | Krassimire Mihaylov Penev | 2011-10-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8037931 | Hybrid water heating system | Krassimire Mihaylov Penev | 2011-10-18 |