Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11716563 | Portable loudspeaker systems | Greg J. Zastoupil, Peter C. Santoro, Craig Small, Joseph J. Kutil, David Edwards Blore | 2023-08-01 |
| 8672088 | Phase plug and acoustic lens for direct radiating loudspeaker | Brian Sterling, John H. Sheerin, Douglas K. Hogue | 2014-03-18 |
| 8418802 | Phase plug and acoustic lens for direct radiating loudspeaker | Brian Sterling, John H. Sheerin, Douglas K. Hogue | 2013-04-16 |
| 8181736 | Phase plug and acoustic lens for direct radiating loudspeaker | Brian Sterling, John H. Sheerin, Douglas K. Hogue | 2012-05-22 |