Inventor · disambiguated record
Harry Madison
Also filed as: MADISON HARRY
18 granted patents·396 citations·filing 1988–2002
95Inventor score
Top patents by PatentIndex Score
18 records- 0194US6595140B1Railway tie plate insertion apparatus and methodHARSCO TECHNOLOGIES CORP·Filed 2002·Granted Jul 22, 2003·29 cites·13 claims
- 0290US6662729B1Rail anchor spreaderHARSCO TECHNOLOGIES CORP·Filed 2002·Granted Dec 16, 2003·21 cites·17 claims
- 0387US5048424ATie replacer and methodHARSCO CORP·Filed 1990·Granted Sep 17, 1991·29 cites·19 claims
- 0480US5197389ATie replacerHARSCO CORP·Filed 1991·Granted Mar 30, 1993·24 cites·24 claims
- 0579US5305692ATruck mounted tie exchanger with self-aligning tie clampHARSCO CORP·Filed 1992·Granted Apr 26, 1994·27 cites·37 claims
- 0678US5542355ATie plate track fastener feederHARSCO CORP·Filed 1994·Granted Aug 6, 1996·24 cites·20 claims
- 0777US5868078ARoad and rail vehicle using rail wheel drive and apparatusHARSCO TECHNOLOGIES CORP·Filed 1997·Granted Feb 9, 1999·41 cites·9 claims
- 0875US5186109ASide shift railway guide wheel apparatus for rail/highway conversion with V-shaped automatic centering surfaces for centering vehicle relative to the railsHARSCO CORP·Filed 1991·Granted Feb 16, 1993·35 cites·19 claims
- 0971US5359815AProfile grinderHARSCO CORP·Filed 1992·Granted Nov 1, 1994·22 cites·28 claims
- 1066US4951573ATie remover and inserterHARSCO CORP·Filed 1988·Granted Aug 28, 1990·28 cites·27 claims
- 1165US6536354B1Railway tie bed scarifierHARSCO TECHNOLOGIES CORP·Filed 2001·Granted Mar 25, 2003·7 cites·5 claims
- 1264US6089162ARail vehicle for tie loading and unloadingHARSCO TECHNOLOGIES CORP·Filed 1997·Granted Jul 18, 2000·31 cites·17 claims
- 1361US5660115AVertically actuated rail guide wheelsHARSCO CORP·Filed 1995·Granted Aug 26, 1997·24 cites·27 claims
- 1456US5619931ARoad and rail using rail wheel drive and apparatusHARSCO CORP·Filed 1995·Granted Apr 15, 1997·19 cites·19 claims
- 1554US5154124ARail engagement apparatus which uses vehicle supensionHARSCO CORP·Filed 1991·Granted Oct 13, 1992·16 cites·20 claims
- 1647US5586507ARail guide wheel apparatus with double overcenter linkageHARSCO CORP·Filed 1995·Granted Dec 24, 1996·14 cites·17 claims
- 1744US6575099B1Railway tie insertion guideHARSCO TECHNOLOGIES CORP·Filed 2001·Granted Jun 10, 2003·1 cites·14 claims
- 1843US6499937B1Material distribution system for stick-like objectsHARSCO TRACK TECHNOLOGIES·Filed 2001·Granted Dec 31, 2002·4 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →