Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8199931 | Parametric loudspeaker with improved phase characteristics | Elwood G. Norris, James J. Croft, III | 2012-06-12 |
| 7729498 | Modulator processing for a parametric speaker system | Michael E. Spencer, James J. Croft, III | 2010-06-01 |
| 7376236 | Piezoelectric film sonic emitter | James J. Croft, III, Alan Robert Selfridge, Pierre Khuri-Yakub | 2008-05-20 |
| 7343017 | System for playback of pre-encoded signals through a parametric loudspeaker system | James J. Croft, III | 2008-03-11 |
| 7162042 | Modulator processing for a parametric speaker system | Michael E. Spencer, James J. Croft, III | 2007-01-09 |
| 6850623 | Parametric loudspeaker with improved phase characteristics | Elwood G. Norris, James J. Croft, III | 2005-02-01 |
| 6584205 | Modulator processing for a parametric speaker system | James J. Croft, III, Michael E. Spencer | 2003-06-24 |