Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10425723 | Upward firing loudspeaker having asymmetric dispersion for reflected sound rendering | Alan J. Seefeldt | 2019-09-24 |
| 10313793 | Passive and active virtual height filter systems for upward firing drivers | Brett G. Crockett, Alan J. Seefeldt, C. Phillip Brown | 2019-06-04 |
| 10283137 | Device and method for tuning a frequency-dependent attenuation stage | Jyri PAKARINEN, Juan Felix Torres, Heiko Purnhagen | 2019-05-07 |