Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6904147 | Releaseable hardhat mount for speaker/mike | Vernon C. Lenz | 2005-06-07 |
| D464953 | Winged hardhat speaker or mike mount | Vernon C. Lenz | 2002-10-29 |
| D464954 | Hardhat cushion attached speaker or mike mount | Vernon C. Lenz | 2002-10-29 |
| D464955 | Hardhat lip speaker or mike mount | Vernon C. Lenz | 2002-10-29 |