Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11916509 | Photovoltaic roofing elements and photovoltaic roofing systems | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2024-02-27 |
| 11025192 | Photovoltaic roofing elements and photovoltaic roofing systems | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2021-06-01 |
| 10454408 | Photovoltaic roofing elements and photovoltaic roofing systems | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2019-10-22 |
| 9755573 | Photovoltaic roofing elements and photovoltaic roofing systems | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2017-09-05 |
| 9270224 | Photovoltaic roofing elements and photovoltaic roofing systems | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2016-02-23 |
| 9032672 | Photovoltaic roofing elements and photovoltaic roofing systems | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2015-05-19 |
| 8631614 | Roofing product with integrated photovoltaic elements and flashing system | Robert D. Livsey, Joseph Charles Gombarick, Peter Chihlas, Husnu M. Kalkanoglu, Stephen W. Steffes +2 more | 2014-01-21 |