Assignee
HIGHWAYMASTER COMM INC
US·26 granted patents·5,651 citations·filing 1993–1998
Top patents by PatentIndex Score
26 records- 0199US5999091ATrailer communications systemHIGHWAYMASTER COMM INC·Filed 1997·Granted Dec 7, 1999·295 cites·37 claims
- 0298US5826195AData messaging in a communications networkHIGHWAYMASTER COMM INC·Filed 1996·Granted Oct 20, 1998·367 cites·27 claims
- 0398US5544225AData messaging in a cellular communications networkHIGHWAYMASTER COMM INC·Filed 1995·Granted Aug 6, 1996·282 cites·26 claims
- 0498US5539810AData messaging in a communications networkHIGHWAYMASTER COMM INC·Filed 1993·Granted Jul 23, 1996·403 cites·24 claims
- 0598US5519621AVehicle locating and communicating method and apparatusHIGHWAYMASTER COMM INC·Filed 1995·Granted May 21, 1996·332 cites·28 claims
- 0697US5913170ALocating system and method using a mobile communications networkHIGHWAYMASTER COMM INC·Filed 1994·Granted Jun 15, 1999·339 cites·30 claims
- 0797US5771455AData messaging in a communications network using a feature requestHIGHWAYMASTER COMM INC·Filed 1995·Granted Jun 23, 1998·229 cites·43 claims
- 0896US5987377AMethod and apparatus for determining expected time of arrivalHIGHWAYMASTER COMM INC·Filed 1998·Granted Nov 16, 1999·357 cites·52 claims
- 0996US5724243AMethod and apparatus for determining expected time of arrivalHIGHWAYMASTER COMM INC·Filed 1995·Granted Mar 3, 1998·291 cites·51 claims
- 1095US5734981AMethod and apparatus for call delivery to a mobile unitHIGHWAYMASTER COMM INC·Filed 1995·Granted Mar 31, 1998·266 cites·28 claims
- 1195US5699275ASystem and method for remote patching of operating code located in a mobile unitHIGHWAYMASTER COMM INC·Filed 1995·Granted Dec 16, 1997·275 cites·42 claims
- 1294US6018657ASystem and method for communicating a message using a cellular telephone networkHIGHWAYMASTER COMM INC·Filed 1997·Granted Jan 25, 2000·299 cites·64 claims
- 1393US5652707AVehicle locating and communicating method and apparatusHIGHWAYMASTER COMM INC·Filed 1996·Granted Jul 29, 1997·127 cites·22 claims
- 1492US5966658AAutomated selection of a communication pathHIGHWAYMASTER COMM INC·Filed 1996·Granted Oct 12, 1999·244 cites·57 claims
- 1590US6055426ANotification of a mobile unit out of coverageHIGHWAYMASTER COMM INC·Filed 1997·Granted Apr 25, 2000·175 cites·32 claims
- 1690US5905433ATrailer communications systemHIGHWAYMASTER COMM INC·Filed 1996·Granted May 18, 1999·246 cites·31 claims
- 1786US5579376APhantom mobile-identification number method and apparatusHIGHWAYMASTER COMM INC·Filed 1995·Granted Nov 26, 1996·135 cites·21 claims
- 1885US6009330AMethod and apparatus for call delivery to a mobile unitHIGHWAYMASTER COMM INC·Filed 1998·Granted Dec 28, 1999·124 cites·17 claims
- 1985US5884221AVehicle locating and communicating method and apparatusHIGHWAYMASTER COMM INC·Filed 1998·Granted Mar 16, 1999·70 cites·31 claims
- 2084US5983108AMethod and apparatus for a nation-wide cellular telephone networkHIGHWAYMASTER COMM INC·Filed 1995·Granted Nov 9, 1999·88 cites·73 claims
- 2184US5970481AMethod and apparatus for determining tax of a vehicleHIGHWAYMASTER COMM INC·Filed 1997·Granted Oct 19, 1999·158 cites·41 claims
- 2283US5694322AMethod and apparatus for determining tax of a vehicleHIGHWAYMASTER COMM INC·Filed 1995·Granted Dec 2, 1997·306 cites·45 claims
- 2382US5918172AMultiple number assignment module communicationHIGHWAYMASTER COMM INC·Filed 1996·Granted Jun 29, 1999·128 cites·51 claims
- 2474US5799249AMethod and apparatus for a nation-wide cellular telephone networkHIGHWAYMASTER COMM INC·Filed 1995·Granted Aug 25, 1998·55 cites·32 claims
- 2561US6061558AMethod and apparatus for a nation-wide cellular telephone networkHIGHWAYMASTER COMM INC·Filed 1998·Granted May 9, 2000·31 cites·34 claims
- 2659US6010102AMultiplane bracketHIGHWAYMASTER COMM INC·Filed 1997·Granted Jan 4, 2000·29 cites·23 claims
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