Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8902488 | System architecture for an optical switch using wavelength, fiber and polarizaton addressing | David Markham Drury, Eric John Helmsen | 2014-12-02 |
| 8851900 | Electronic learning system | Allan A. Sura | 2014-10-07 |
| 8506305 | Electronic learning system | Allan A. Sura | 2013-08-13 |
| 8432062 | RF powered specialty lighting, motion, sound | Charles E. Greene, Daniel W. Harrist, Michael T. McElhinny | 2013-04-30 |
| 7898105 | RF powered specialty lighting, motion, sound | Charles E. Greene, Daniel W. Harrist, Michael T. McElhinny | 2011-03-01 |