Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5014294 | Speakerphone for cellular telephones with howl prevention, detection, elimination and determination | Susan Kromenaker, James Donald Lefebvre | 1991-05-07 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5014294 | Speakerphone for cellular telephones with howl prevention, detection, elimination and determination | Susan Kromenaker, James Donald Lefebvre | 1991-05-07 |