Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8315653 | Routing messages between cellular handsets and a multi-handset cordless telephone system | Julian Lee, Sukhdeep Singh Hundal | 2012-11-20 |
| 7933556 | Remote video access capability for a wireless video monitoring/cordless phone system | Ralph Tischler | 2011-04-26 |
| 7738917 | Intercom/wireless door bell for multi-handset telephone system | Ralph Tischler, Allan Chi-Yun Wong, Jagjit Grewal, Stephen Kropp | 2010-06-15 |
| 7339608 | Wireless motion sensor using infrared illuminator and camera integrated with wireless telephone | Ralph Tischler | 2008-03-04 |
| 7062291 | Wireless multi-handset telephone system with integrated video monitoring accessories | Ralph Tischler, Allan Chi-Yun Wong | 2006-06-13 |
| 6990356 | Cordless telephone system with wireless expansion peripherals | Douglas Charney | 2006-01-24 |
| 6914968 | Method and apparatus for telephone call fraud detection and prevention | Sheldon Dean McCullough | 2005-07-05 |