Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8819870 | Worm drive adjustment for headgear suspension | David C. Rogers, Duco W. Noordzij, Peter L. Stokes | 2014-09-02 |
| 8578521 | Worm drive adjustment for headgear suspension | David C. Rogers, Duco W. Noordzij, Peter L. Stokes | 2013-11-12 |
| D681707 | Worm gear adjuster | David C. Rogers, Duco W. Noordzij, Peter L. Stokes | 2013-05-07 |