Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807305 | Helmet shield mechanism | — | 1989-02-28 |
| 4667348 | Cyclist's helmet and face mask | — | 1987-05-26 |
| 4622700 | Suction ventilated helmet | — | 1986-11-18 |
| 4607395 | Helmet radio control package | — | 1986-08-19 |
| 4549541 | Helmet system | — | 1985-10-29 |
| 4461044 | Bicycle helmet retention system with quick disconnect | Donald R. Reiterman | 1984-07-24 |
| 4434514 | Bicyclists helmet with air flow and perspiration control | Lester Broersma | 1984-03-06 |
| D272769 | Cyclist's vented helmet | Lester Broersma | 1984-02-28 |
| D272770 | Cyclist's vented helmet with visor | Lester Broersma | 1984-02-28 |
| 4305160 | Detent controlled helmet shields | — | 1981-12-15 |