Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8351621 | System and method for excursion limiting | Hilmar Lehnert, Michael Stark, Joseph Gaalaas | 2013-01-08 |
| 8295526 | Low frequency enclosure for video display devices | Kevin J. Bastyr, Jacky Chi-Hung Chan, Hilmar Lehnert, Robert Preston Parker | 2012-10-23 |
| 8151929 | Acoustic waveguide vibration damping | Jacky Chi-Hung Chan | 2012-04-10 |
| 8002078 | Acoustic waveguide vibration damping | Jacky Chi-Hung Chan | 2011-08-23 |
| 5714721 | Porting | Gerald F. Caron | 1998-02-03 |
| 5193118 | Vehicular sound reproducing | Ernest Latham-Brown, Peter Warren Hubbe | 1993-03-09 |
| 5092424 | Electroacoustical transducing with at least three cascaded subchambers | William P. Schreiber | 1992-03-03 |