Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10897669 | Two layer microphone protection | Martin Ring, David-Michael Lozupone, Edwin C. Johnson, Jr., Michael Ciufo | 2021-01-19 |
| 10659861 | Composite earcushion | Raymond O. England, Richard L. House, Derek J. Stacey | 2020-05-19 |
| 10187716 | Composite earcushion | Raymond O. England, Richard L. House, Derek J. Stacey | 2019-01-22 |