Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7370374 | Ventilated safety goggles | Frank Penque, Alan W. Reichow, Karl Citek | 2008-05-13 |
| 7073208 | Ventilated safety goggles | Frank Penque, Alan W. Reichow, Karl Citek | 2006-07-11 |