Average Co-Inventor Count = 2.44
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Vtech Telecommunications Limited (6 from 90 patents)
2. Vtech Communications Limited (1 from 63 patents)
7 patents:
1. 8315653 - Routing messages between cellular handsets and a multi-handset cordless telephone system
2. 7933556 - Remote video access capability for a wireless video monitoring/cordless phone system
3. 7738917 - Intercom/wireless door bell for multi-handset telephone system
4. 7339608 - Wireless motion sensor using infrared illuminator and camera integrated with wireless telephone
5. 7062291 - Wireless multi-handset telephone system with integrated video monitoring accessories
6. 6990356 - Cordless telephone system with wireless expansion peripherals
7. 6914968 - Method and apparatus for telephone call fraud detection and prevention