Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8577061 | Power supply for limited power sources and audio amplifier using power supply | Andrew Mason | 2013-11-05 |
| 8535136 | Read and write playing care | — | 2013-09-17 |
| 8279001 | Push-pull linear hybrid class H amplifier | Andrew Mason | 2012-10-02 |
| 8235825 | Smart card holder for automated gaming system and gaming cards | — | 2012-08-07 |
| 8221244 | Table with sensors and smart card holder for automated gaming system and gaming cards | — | 2012-07-17 |
| 8201448 | Gravity gradiometer with torsion flexure pivots | Kieran A. Carroll | 2012-06-19 |
| 8143949 | Push-pull linear hybrid class H amplifier | Andrew Mason | 2012-03-27 |
| 8139816 | Acoustic transducer | Andrew Mason | 2012-03-20 |
| 8036414 | Speaker | Douglas Walter Hansen | 2011-10-11 |
| 7874358 | Method for oil sand exploration and development | William A. Breukelman, Brian William Main | 2011-01-25 |
| 7362168 | Audio amplifier | Douglas Walter Hansen | 2008-04-22 |
| 7360419 | Gravity gradiometer | Kieran A. Carroll, Steven J. Thorpe | 2008-04-22 |
| 6837106 | Gravity gradiometry | Bernard Etkin, Bjarni Tryggvason, Frank Joachim Van Kann | 2005-01-04 |
| 6825726 | Power amplifier with multiple power supplies | Charles Robert May | 2004-11-30 |
| 6160455 | Derived power supply for composite bridge amplifiers | David Russell | 2000-12-12 |
| 6149928 | Protection system against subterranean termites | — | 2000-11-21 |
| 6108219 | DC power converter circuit | — | 2000-08-22 |
| 5969352 | Spray chamber with dryer | Bernard Etkin, Raymond Jong, Guy Legere | 1999-10-19 |
| 5735742 | Gaming table tracking system and method | — | 1998-04-07 |
| 5684581 | Torch for inductively coupled plasma spectrometry | Raymond Jong, Bernard Etkin | 1997-11-04 |
| 5651548 | Gaming chips with electronic circuits scanned by antennas in gaming chip placement areas for tracking the movement of gaming chips within a casino apparatus and method | William Piehl | 1997-07-29 |
| 5548163 | Device for securing car audio equipment | — | 1996-08-20 |
| 5510753 | Composite bridge amplifier with output overload and thermal protection | — | 1996-04-23 |
| 5345079 | Apparatus and method for liquid sample introduction | Bernard Etkin | 1994-09-06 |
| 5184152 | Printing apparatus and method for printing on an elongated member such as a tube | — | 1993-02-02 |