Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45459 | Protective helmet | Kevin R. Ketterer, Robert Klotz | 2015-04-14 |
| 8539613 | Protective helmet | Kevin R. Ketterer, Robert Klotz | 2013-09-24 |
| 8522418 | Protective helmets and method of manufacture thereof | — | 2013-09-03 |
| 8464362 | Protective helmets and method of manufacture thereof | — | 2013-06-18 |
| 8225419 | Protective helmet | Kevin R. Ketterer, Robert Klotz | 2012-07-24 |
| 7296305 | Adjustable headband | Kevin R. Ketterer, Gregoire Aby-Eva, Paul A. Zeller, Anthony Scoccimerra, Jr., Robert E. Bechtold | 2007-11-20 |
| 7110743 | Communications device for a protective helmet | Larry Depew, Joseph Birli, Lou Monaco, Greg Skillicom, Dan Zimet +4 more | 2006-09-19 |
| 7089603 | Adjustable headband | Kevin R. Ketterer, Gregoire Aby-Eva, Paul A. Zeller | 2006-08-15 |