Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11304851 | Push-to-fit earplug with tip cavity | Robert C. Coffin, Matthew V. Stonebraker, Jr., Jacob H. Ely, Kenneth F. Teeters, Ravi Thomas | 2022-04-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11304851 | Push-to-fit earplug with tip cavity | Robert C. Coffin, Matthew V. Stonebraker, Jr., Jacob H. Ely, Kenneth F. Teeters, Ravi Thomas | 2022-04-19 |