Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9626988 | Methods and apparatus for masking speech in a private environment | Joel S. Fechter | 2017-04-18 |
| 8670986 | Method and apparatus for masking speech in a private environment | Joel S. Fechter | 2014-03-11 |