Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9103564 | Solar energy converter and method for converting solar energy | Ralph B. Ahlgren, Klaus Petry | 2015-08-11 |
| 9029683 | Self-contained, multi-fluid energy conversion and management system for converting solar energy to electric and thermal energy | Ralph B. Ahlgren, Klaus Petry | 2015-05-12 |