Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Voice over IP auto-switching/backup for emergency calls

Voice over IP auto-switching/backup for emergency calls

US Patent 7929517 · Granted Apr 19, 2011

Estimated economic value: $20,962,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Systems and methods for automatic and selective remote mobile device data extrac2024
Access control via a mobile device2022
Access control via a mobile device2021
Access control via a mobile device2019
Access control via a mobile device2017
Access control via a mobile device2017
Self-ligating orthodontic appliance and related methods2016
Automated devices, systems, and methods for the fabrication of tissue2016
Wire bundling device and wire bundling method2015
Method and apparatus for removing low-concentration methane2015
Method for producing liquefied fuel oil using biomass as feedstock2015
Method for producing water-insoluble liquefied fuel oil from biomass2014