Inventor · disambiguated record
Larry C. Wortham
Also filed as: WORTHAM LARRY C
20 granted patents·4,225 citations·filing 1980–2004
98Inventor score
Files withHIGHWAYMASTER COMM INC6OTIS ENG CO3BY WORD TECHNOLOGIES INC2HIGHWAY MASTER COMMUNICATIONS2MINORPLANET SYSTEMS USA INC2
Top patents by PatentIndex Score
20 records- 0199US5999091ATrailer communications systemHIGHWAYMASTER COMM INC·Filed 1997·Granted Dec 7, 1999·295 cites·37 claims
- 0298US5519621AVehicle locating and communicating method and apparatusHIGHWAYMASTER COMM INC·Filed 1995·Granted May 21, 1996·332 cites·28 claims
- 0398US5299132AVehicle locating and communicating method and apparatus using cellular telephone networkBY WORD TECHNOLOGIES INC·Filed 1992·Granted Mar 29, 1994·642 cites·11 claims
- 0497US5913170ALocating system and method using a mobile communications networkHIGHWAYMASTER COMM INC·Filed 1994·Granted Jun 15, 1999·339 cites·30 claims
- 0597US5398190AVehicle locating and communicating method and apparatusHM HOLDING CORP·Filed 1994·Granted Mar 14, 1995·461 cites·24 claims
- 0697US5155689AVehicle locating and communicating method and apparatusBY WORD TECHNOLOGIES INC·Filed 1991·Granted Oct 13, 1992·376 cites·31 claims
- 0795US4636934AWell valve control systemOTIS ENG CO·Filed 1984·Granted Jan 13, 1987·177 cites·23 claims
- 0894US6535743B1System and method for providing directions using a communication networkMINORPLANET SYSTEMS USA INC·Filed 1998·Granted Mar 18, 2003·377 cites·56 claims
- 0994US5513111AVehicle locating and communicating method and apparatusHIGHWAY MASTER COMMUNICATIONS·Filed 1994·Granted Apr 30, 1996·203 cites·24 claims
- 1093US6748226B1System and method for locating a mobile unit within the service area of a mobile communications networkMINORPLANET SYSTEMS USA INC·Filed 1998·Granted Jun 8, 2004·186 cites·16 claims
- 1193US5652707AVehicle locating and communicating method and apparatusHIGHWAYMASTER COMM INC·Filed 1996·Granted Jul 29, 1997·127 cites·22 claims
- 1291US5832394AVehicle locating and communicating method and apparatusHIGHWAY MASTER COMMUNICATIONS·Filed 1997·Granted Nov 3, 1998·108 cites·23 claims
- 1390US7308272B1Mobile phone locatorON BOARD COMMUNICATIONS INC·Filed 2002·Granted Dec 11, 2007·102 cites·34 claims
- 1490US5905433ATrailer communications systemHIGHWAYMASTER COMM INC·Filed 1996·Granted May 18, 1999·246 cites·31 claims
- 1586US6148202AVehicle locating and communicating method and apparatusTRACK COMMUNICATIONS INC·Filed 1998·Granted Nov 14, 2000·73 cites·24 claims
- 1685US5884221AVehicle locating and communicating method and apparatusHIGHWAYMASTER COMM INC·Filed 1998·Granted Mar 16, 1999·70 cites·31 claims
- 1777US4355365AElectronic intermitterOTIS ENG CO·Filed 1980·Granted Oct 19, 1982·30 cites·15 claims
- 1867US4568933AElectronic well tools and multi-channel recorderOTIS ENG CO·Filed 1981·Granted Feb 4, 1986·35 cites·22 claims
- 1958US7228139B1Location processing systemON BOARD COMMUNICATIONS INC·Filed 2004·Granted Jun 5, 2007·14 cites·24 claims
- 2055US6308060B2Method and apparatus for providing a communication path using a paging networkTRACK COMMUNICATIONS INC·Filed 1998·Granted Oct 23, 2001·32 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →