Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9801424 | Helmet provided with an adjustable device for the helmet comfort liner | Giovanni Mazzarolo, Duco W. Noordzij | 2017-10-31 |
| 9717294 | Hinged attachment of headgear to a helmet | Charles H. Rogers, Darwin Keith-Lucas, Duco W. Noordzij | 2017-08-01 |
| 9572387 | Helmet edge band | — | 2017-02-21 |