US Patent 7,433,694: Location beacon database

US Patent 7,414,988: Server for updating location beacon database

US Patent 7,305,245: Location-based services that choose location algorithms based on number of detected access points within range of user device

US Patent 7,403,762: Method and system for building a location beacon database

US Patent 7,502,620: Encoding and compression of a location beacon database

US Patent 7,493,127: Continuous data optimization of new access points in positioning systems

US Patent 7,474,897: Continuous data optimization by filtering and positioning systems

US Patent 7,471,954: Methods and systems for estimating a user position in a WLAN positioning system based on user assigned access point locations

US Patent 7,515,578: Estimation of positioning using WLAN access point radio propagation characteristics in a WLAN positioning system

US Patent 7,551,579: Calculation of quality of WLAN access point characterization for use in a WLAN positioning system

US Patent 7,551,929: Estimation of speed and direction of travel in a WLAN positioning system using multiple position estimations

US Patent 7,768,963: System and method of improving sample of WLAN packet information to improve Doppler frequency of a WLAN positioning device.

US Patent 7,769,396: Location-based services that choose location algorithms based on number of detected access points within range of a user device.

US Patent 11/950,242: Location-based services that choose location algorithms based on number of detected access points within range of a user device.

US Patent 11/430,079: Estimation of speed and direction of travel in a WLAN positioning system.