Assignee
HARMON INDUSTRIES
US·20 granted patents·912 citations·filing 1974–2000
Top patents by PatentIndex Score
20 records- 0195US5533695AIncremental train control systemHARMON INDUSTRIES·Filed 1994·Granted Jul 9, 1996·215 cites·23 claims
- 0294US5452870AFixed data transmission system for controlling train movementHARMON INDUSTRIES·Filed 1994·Granted Sep 26, 1995·130 cites·8 claims
- 0394US5340062ATrain control system integrating dynamic and fixed dataHARMON INDUSTRIES·Filed 1992·Granted Aug 23, 1994·122 cites·21 claims
- 0482US5769364ACoded track circuit with diagnostic capabilityHARMON INDUSTRIES·Filed 1997·Granted Jun 23, 1998·47 cites·8 claims
- 0581US5060890ADetection of overheated railroad wheel and axle componentsHARMON INDUSTRIES·Filed 1989·Granted Oct 29, 1991·51 cites·8 claims
- 0680US6392553B1Signal interface moduleHARMON INDUSTRIES·Filed 2000·Granted May 21, 2002·27 cites·19 claims
- 0780US5149025ADetection of overheated railroad wheel and axle componentsHARMON INDUSTRIES·Filed 1991·Granted Sep 22, 1992·51 cites·8 claims
- 0877US5586736ACab signal sensor with noise suppressionHARMON INDUSTRIES·Filed 1995·Granted Dec 24, 1996·43 cites·14 claims
- 0976US5628479AVital wheel detectorHARMON INDUSTRIES·Filed 1995·Granted May 13, 1997·40 cites·10 claims
- 1069US3964704AOperating mechanism for railroad crossing gateHARMON INDUSTRIES·Filed 1974·Granted Jun 22, 1976·30 cites·12 claims
- 1164US4928910ADetection of overheated railroad wheel and axle componentsHARMON INDUSTRIES·Filed 1988·Granted May 29, 1990·23 cites·18 claims
- 1263US4934633ACrossing control unitHARMON INDUSTRIES·Filed 1988·Granted Jun 19, 1990·22 cites·10 claims
- 1359US5924652AIsland presence detectedHARMON INDUSTRIES·Filed 1997·Granted Jul 20, 1999·21 cites·15 claims
- 1458US6064315AZero speed transducerHARMON INDUSTRIES·Filed 1998·Granted May 16, 2000·21 cites·14 claims
- 1557US5628478ACab signal pickup system with motor noise reductionHARMON INDUSTRIES·Filed 1995·Granted May 13, 1997·21 cites·11 claims
- 1655US5170970AMethod and apparatus for improving rail shuntsHARMON INDUSTRIES·Filed 1990·Granted Dec 15, 1992·17 cites·8 claims
- 1743US5507434AClamp mount for concrete tiesHARMON INDUSTRIES·Filed 1994·Granted Apr 16, 1996·13 cites·6 claims
- 1840US4868538ARandom signature island circuitHARMON INDUSTRIES·Filed 1988·Granted Sep 19, 1989·10 cites·19 claims
- 1934US4026505AVariable high pass couplerHARMON INDUSTRIES·Filed 1976·Granted May 31, 1977·4 cites·20 claims
- 2032US5436787ASurge arrestor unitHARMON INDUSTRIES·Filed 1993·Granted Jul 25, 1995·4 cites·9 claims
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