Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11089832 | Helmet impact attenuation article | Leonard P. Frieder, Jr., George D. Hedges, Christopher Barmore | 2021-08-17 |
| D922692 | Helmet pad | Duco W. Noordzij | 2021-06-15 |
| 10893718 | Individually conforming impact attenuating liner for a helmet | Matthew Hanudel, Duco W. Noordzij | 2021-01-19 |
| D767213 | Helmet mounted visor | Matthew Hanudel, Duco W. Noordzij | 2016-09-20 |
| D721457 | Mount arm | Eduard U. Milea, David C. Rogers | 2015-01-20 |
| 8882285 | Illuminating safety glove | — | 2014-11-11 |