Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12336884 | Foam earplug with transdermal material | Mark Magidson, Fred Joseph Ryan | 2025-06-24 |
| 12329612 | Foam earplug with transdermal material | Mark Magidson, Fred Joseph Ryan | 2025-06-17 |
| 12310821 | Foam earplug with transdermal material | Mark Magidson, Fred Joseph Ryan | 2025-05-27 |
| 12082994 | Foam earplug with transdermal material | Mark Magidson, Fred Joseph Ryan | 2024-09-10 |