Assignee
WESTERN CULLEN HAYES
18 granted patents·1 pending application·255 citations·filing 1978–2021
Top patents by PatentIndex Score
19 records- 0182US4165060APortable derailWESTERN CULLEN HAYES·Filed 1978·Granted Aug 21, 1979·19 cites·14 claims
- 0279US7549611B2Hinged derail with assisted manual lifting and method for constructingWESTERN CULLEN HAYES·Filed 2006·Granted Jun 23, 2009·10 cites·12 claims
- 0374US7909293B2Low profile derailWESTERN CULLEN HAYES·Filed 2009·Granted Mar 22, 2011·6 cites·5 claims
- 0474US6327818B1Crossing gate arm protection assemblyWESTERN CULLEN HAYES·Filed 2000·Granted Dec 11, 2001·22 cites·16 claims
- 0573US11001280B2Universal track derailer assemblyWESTERN CULLEN HAYES·Filed 2018·Granted May 11, 2021·2 cites·6 claims
- 0663US6966146B2Two directional crossing gate arm protection assemblyWESTERN CULLEN HAYES·Filed 2002·Granted Nov 22, 2005·22 cites·16 claims
- 0761US6155178AWheel stop for an overhead vehicleWESTERN CULLEN HAYES·Filed 1998·Granted Dec 5, 2000·19 cites·7 claims
- 0860US11897523B2Universal track derailer assemblyWESTERN CULLEN HAYES·Filed 2021·Granted Feb 13, 2024·0 cites·12 claims
- 0959US6168120B1Operator for a railroad implementWESTERN CULLEN HAYES·Filed 1998·Granted Jan 2, 2001·19 cites·22 claims
- 1057US6307339B1Bi-directionally dynamically braked gate crossing mechanism controllerWESTERN CULLEN HAYES·Filed 1999·Granted Oct 23, 2001·25 cites·42 claims
- 1157US4386751ASwitch point guardWESTERN CULLEN HAYES·Filed 1981·Granted Jun 7, 1983·21 cites·10 claims
- 1253US6105906ALightweight and ultra-lightweight portable derailsWESTERN CULLEN HAYES·Filed 1998·Granted Aug 22, 2000·17 cites·11 claims
- 1352US6308638B1Wheel stop for an overhead vehicleWESTERN CULLEN HAYES·Filed 2000·Granted Oct 30, 2001·3 cites·11 claims
- 1449US5865122AApparatus for attaching buffer stop to railroad trackWESTERN CULLEN HAYES·Filed 1997·Granted Feb 2, 1999·16 cites·16 claims
- 1547US2008022882A1Hinged derail with assisted manual lifting and method for constructingWESTERN CULLEN HAYES·Filed 2006·Application pending·0 cites
- 1646US6178893B1Adjustable hinged derailWESTERN CULLEN HAYES·Filed 1999·Granted Jan 30, 2001·12 cites·14 claims
- 1744US6202564B1Double end derailWESTERN CULLEN HAYES·Filed 1998·Granted Mar 20, 2001·14 cites·11 claims
- 1840US5211266ARail skateWESTERN CULLEN HAYES·Filed 1991·Granted May 18, 1993·10 cites·7 claims
- 1936US5653058ARailroad gate arm swivel adapter spring assemblyWESTERN CULLEN HAYES·Filed 1995·Granted Aug 5, 1997·18 cites·14 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →