Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8340903 | Wayfinding system | — | 2012-12-25 |
| 7512406 | Personnel tracking system | — | 2009-03-31 |
| 7426231 | Communication within buildings | — | 2008-09-16 |
| 7313411 | Wireless communication system | — | 2007-12-25 |
| 7117024 | Wireless telephone communication with reduced electromagnetic energy input on the user | — | 2006-10-03 |
| 6463090 | Communication in high rise buildings | — | 2002-10-08 |
| 5623258 | Multi-station data capture system | — | 1997-04-22 |
| 4239940 | Carrier current communications system | — | 1980-12-16 |