TELECOMMUNICATION SYSTEMS, INC.
458Patents
389Active
458Granted
56Portfolio score
Filing activity: Oct 4, 1999 → Jul 21, 2017 · 152 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6940950B2 | Enhanced E911 location information using voice over internet protocol (VoIP) | Electricity | 264 | Expired |
| US9423266B2 | Navigational lane guidance | Physics | 252 | Active |
| US7260186B2 | Solutions for voice over internet protocol (VoIP) 911 location services | Electricity | 241 | Expired |
| US7974235B2 | Secure location session manager | Electricity | 209 | Active |
| US7110773B1 | Mobile activity status tracker | Electricity | 197 | Expired |
| US6650288B1 | Culled satellite ephemeris information for quick assisted GPS location determination | Physics | 177 | Expired |
| US6658260B2 | Inter-carrier short messaging service providing phone number only experience | Electricity | 145 | Expired |
| US9658341B2 | GNSS long-code acquisition, ambiguity resolution, and signal validation | Physics | 133 | Active |
| US8336664B2 | Telematics basic mobile device safety interlock | Emerging Cross-Sectional Technologies | 127 | Active |
| US8019532B2 | Method and system for identifying and defining geofences | Electricity | 119 | Active |
| US7191233B2 | System for automated, mid-session, user-directed, device-to-device session transfer system | Electricity | 119 | Expired |
| US7200380B2 | Wireless telecommunications location based services scheme selection | Electricity | 118 | Expired |
| US7626951B2 | Voice Over Internet Protocol (VoIP) location based conferencing | Electricity | 113 | Active |
| US7424293B2 | User plane location based service using message tunneling to support roaming | Electricity | 111 | Expired |
| US7321773B2 | Area watcher for wireless network | Electricity | 110 | Expired |
| US6564055B1 | Intelligent roaming database (IRDB) updating | Electricity | 101 | Expired |
| US7024474B2 | System and method to publish information from servers to remote monitor devices | Electricity | 101 | Expired |
| US7574486B1 | Web page content translator | Electricity | 97 | Expired |
| US7548158B2 | First responder wireless emergency alerting with automatic callback and location triggering | Electricity | 96 | Active |
| US7426380B2 | Location derived presence information | Electricity | 95 | Expired |
| US6891811B1 | Short messaging service center mobile-originated to HTTP internet communications | Electricity | 90 | Expired |
| US7764961B2 | Mobile based area event handling when currently visited network does not cover area | Electricity | 86 | Active |
| US8185087B2 | Emergency 911 data messaging | Electricity | 81 | Active |
| US7127264B2 | Mobile originated interactive menus via short messaging services | Electricity | 81 | Expired |
| US8682286B2 | Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging | Electricity | 73 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.