Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11722829 | Hybrid shell for hearing aid | Michael Karl Sacha, Jay Stewart, Craig C. Feldsien | 2023-08-08 |
| 11277699 | Hybrid shell for hearing aid | Michael Karl Sacha, Jay Stewart, Craig C. Feldsien | 2022-03-15 |
| 10397714 | Hybrid shell for hearing aid | Michael Karl Sacha, Jay Stewart, Craig C. Feldsien | 2019-08-27 |