Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10992139 | Electrical power system | — | 2021-04-27 |
| 6173062 | Frequency transpositional hearing aid with digital and single sideband modulation | Charles S. Richardson, Arnold Lippa | 2001-01-09 |