Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8130914 | Calling card having an associated pre-recorded personal greeting | Stacy Borocz, Anne Gillman, Karl M. Henderson | 2012-03-06 |
| 7180990 | Prepaid telephone calling card with message recording capability | Karl M. Henderson, Stacy Borocz, Anne Gillman, Kamran Mir | 2007-02-20 |
| 7145989 | Pre-paid telephone calling card having an associated pre-recorded personal greeting | Stacy Borocz, Anne Gillman, Karl M. Henderson | 2006-12-05 |
| 6550248 | Electrical generating system using solar energy | Bruce Sangster | 2003-04-22 |
| 6507644 | Pre-paid telephone calling card linked to a stored value account | Karl M. Henderson, David K. Ford, Kamran Mir | 2003-01-14 |
| 6404869 | Preferred billing rate pre-paid telephone calling card | Karl M. Henderson, Charles David Ford, Kamran Mir | 2002-06-11 |
| 6123868 | Photochromic molecular heat exchange medium | Bruce Sangster | 2000-09-26 |
| 6051186 | Container and devices to assure sterilization of surfaces and devices by electric field and sterilizing media | Bruce Sangster | 2000-04-18 |
| 5750072 | Sterilization by magnetic field stimulation of a mist or vapor | Bruce Sangster | 1998-05-12 |
| 5626020 | Molecular refrigerants and cooling systems | Bruce Sangster | 1997-05-06 |
| 4216658 | Refrigeration means and methods | Ralph N. Baker, III, Byron W. Olson | 1980-08-12 |