Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8600562 | Household energy management sytem | — | 2013-12-03 |
| 8386082 | Utilizing cell phone location for occupancy determination and home energy control | — | 2013-02-26 |
| 7918268 | Heat exchanger | — | 2011-04-05 |
| 7778734 | Using energy-use sensors to model activity and location of building users | Stephen John Tamsett | 2010-08-17 |
| 7600316 | Heat exchanger and a method of manufacturing a heat exchanger | — | 2009-10-13 |
| 7305832 | Work extraction arrangement | Paul Fletcher | 2007-12-11 |
| 7266946 | Gas fuel compression by liquification | Paul Fletcher | 2007-09-11 |
| 6585034 | Heat exchanger | — | 2003-07-01 |
| 6115919 | Heat exchanger | David A. Dawson | 2000-09-12 |
| 5797449 | Heat exchanger | David A. Dawson | 1998-08-25 |