Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8963373 | Grid tie solar system and a method | Peter F. Gerhardinger, David R. Feltner, Robert J. Simons | 2015-02-24 |
| 8779627 | Grid tie solar system and a method | Peter F. Gerhardinger, David R. Feltner, Robert J. Simons | 2014-07-15 |
| 8289709 | Inverter system | David R. Feltner, David E. Olin, Peter F. Gerhardinger | 2012-10-16 |