Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11381920 | Loudspeaker with acoustically transparent spider | — | 2022-07-05 |
| 11245986 | Electro-magnetic motor geometry with radial ring and axial pole magnet | — | 2022-02-08 |
| 10392183 | Funnel storage systems | — | 2019-08-27 |
| 9055370 | Vibration-reducing passive radiators | Hal P. Greenberger | 2015-06-09 |