Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8894432 | Connector assembly | Neil Ward, Colin Jones, Stephen B. Smith | 2014-11-25 |
| 7420119 | Subterranean electrical hub | Joseph John Janos, John Joseph Ascherl, Raymond J. Fritz, Richard A. Williams | 2008-09-02 |
| 4918752 | Helmet with detachable front section | — | 1990-04-24 |
| 4905947 | Display assembly | Daniel Henne, Steven F. Fadie, Michael C. Byers, Wayne A. Leistra, Richard H. Walcott +2 more | 1990-03-06 |
| 4648138 | Retention and quick release mechanism | Kenneth A. Brigden | 1987-03-10 |
| 4571747 | Helmet with visor mechanism | — | 1986-02-25 |