Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11304851 | Push-to-fit earplug with tip cavity | Robert C. Coffin, Jacob H. Ely, Jeff L. Hamer, Kenneth F. Teeters, Ravi Thomas | 2022-04-19 |
| D895901 | Hearing protector | Robert C. Coffin, Jacob H. Ely, Ravi Thomas | 2020-09-08 |
| D889754 | Hearing protector | Robert C. Coffin, Jacob H. Ely, Ravi Thomas | 2020-07-07 |