Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10028062 | Driving plural armatures with a common stator | Brian Lucas, Johan H. Isaksson | 2018-07-17 |
| 9601969 | Inhibiting rocking of loads driven by plural levers | Brian Lucas, Johan H. Isaksson | 2017-03-21 |
| 9497549 | Levered loudspeakers | Brian Lucas, Johan H. Isaksson, Weidong Zhu, Benjamin G. K. Peterson | 2016-11-15 |
| 9473848 | Transmission line loudspeaker | Carl Jensen, Brian Lucas | 2016-10-18 |
| 9357279 | Elastomeric torsion bushings for levered loudspeakers | Brian Lucas, Johan H. Isaksson | 2016-05-31 |
| 9258648 | Levered loudspeakers | Brian Lucas, Johan H. Isaksson, Benjamin G. K. Peterson | 2016-02-09 |
| 9049517 | Transmission line loudspeaker | — | 2015-06-02 |
| 8295536 | Moving magnet levered loudspeaker | Richard Tucker Carlmark, Brian Lucas, Thomas C. Schroeder, Joseph A. Stabile | 2012-10-23 |
| 8295537 | Loudspeaker moment and torque balancing | Richard Tucker Carlmark, Brian Lucas, Thomas C. Schroeder, Joseph A. Stabile | 2012-10-23 |
| 8290195 | Acoustic radiation pattern adjusting | Dewey Potter | 2012-10-16 |
| 8031896 | Passive acoustic radiating | Hal P. Greenberger, Roman N. Litovsky, Christopher B. Ickler, Roger Mark, George Nichols | 2011-10-04 |
| 7133533 | Passive acoustic radiating | Hal P. Greenberger, Roman N. Litovsky, Christopher B. Ickler, Roger Mark, George Nichols | 2006-11-07 |
| 7082899 | Controlled starting and braking of an internal combustion engine | David E. Hanson, Jun Ma, Benjamin G. K. Peterson | 2006-08-01 |
| 6363157 | Multiple element electroacoustic transducing | — | 2002-03-26 |