Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10972831 | Hanging speaker system | Lindsey K. Humphrey, Kenneth Hecht | 2021-04-06 |
| 10869113 | Hanging speaker system | Lindsey K. Humphrey | 2020-12-15 |
| 10812884 | Hanging speaker system | Lindsey K. Humphrey | 2020-10-20 |
| 10694280 | Hanging speaker system | Lindsey K. Humphrey, Kenneth Hecht | 2020-06-23 |
| 10595120 | Hanging speaker system | Lindsey K. Humphrey, Kenneth Hecht | 2020-03-17 |
| 10448148 | Hanging speaker system | Lindsey K. Humphrey, Kenneth Hecht | 2019-10-15 |
| 8774420 | Headphones with expandable speaker enclosures | Stephen Belafonte, Chris Witham, David Staley | 2014-07-08 |
| 7654361 | Balanced cantilever spring bracket | — | 2010-02-02 |
| 7636447 | Acoustic bracket system | Stephen Saint-Vincent, John Koval | 2009-12-22 |
| 7503422 | Expandable speaker enclosure | Ken Hecht | 2009-03-17 |
| 7386137 | Sound transducer for solid surfaces | — | 2008-06-10 |
| 7274793 | Excursion limiter | John Koval | 2007-09-25 |
| 6993145 | Speaker grille frame | — | 2006-01-31 |
| 6963650 | Coaxial speaker with step-down ledge to eliminate sound wave distortions and time delay | — | 2005-11-08 |
| 6707919 | Driver control circuit | John Koval | 2004-03-16 |
| 6609589 | Speaker enclosure and mounting method for isolating and insulating faceplate and heavy speakers from surrounding mounting surface | — | 2003-08-26 |
| 6550570 | Speaker enclosure and mounting method for isolating and insulating faceplate and speakers from a surrounding mounting surface | — | 2003-04-22 |
| 6484983 | Speaker mounting device | — | 2002-11-26 |
| 6415886 | In-wall speaker mounting apparatus | — | 2002-07-09 |
| 6360842 | In-wall speaker mounting apparatus | — | 2002-03-26 |
| 6354397 | Attachment fixture for the front panel and grill of a speaker assembly | Robert R. Hoyes | 2002-03-12 |
| 5937072 | Audio crossover circuit | — | 1999-08-10 |
| 5568560 | Audio crossover circuit | — | 1996-10-22 |