Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754667 | Audio filter with magnetic field cancellation | Frank M. Barone, Moses A. Gabbay | 1998-05-19 |
| 5195143 | Acoustical ribbon transducer loudspeaker system | Leo Spiegel | 1993-03-16 |