Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718127 | Helmet visor with locking hinge assemble | Nancy C. Rittmann, Steven R. Wente | 1988-01-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718127 | Helmet visor with locking hinge assemble | Nancy C. Rittmann, Steven R. Wente | 1988-01-12 |