Assignee
CHEMETRON RAILWAY PROD
US·10 granted patents·1 pending application·219 citations·filing 1980–2013
Top patents by PatentIndex Score
11 records- 0194US5270514AMethod and apparatus for flash butt welding railway railsCHEMETRON RAILWAY PROD·Filed 1992·Granted Dec 14, 1993·59 cites·14 claims
- 0273US6163003AMethod and apparatus for controlling forging force during flash butt welding of railway railsCHEMETRON RAILWAY PROD·Filed 1998·Granted Dec 19, 2000·38 cites·30 claims
- 0370US4938460AApparatus for air quenching railway headsCHEMETRON RAILWAY PROD·Filed 1987·Granted Jul 3, 1990·15 cites·13 claims
- 0469US5531408ARailroad switch standCHEMETRON RAILWAY PROD·Filed 1993·Granted Jul 2, 1996·31 cites·9 claims
- 0560US5183519AMethod for quenching railway rail headsCHEMETRON RAILWAY PROD·Filed 1991·Granted Feb 2, 1993·13 cites·11 claims
- 0653US2013284705A1Welding head rail squaring processCHEMETRON RAILWAY PROD·Filed 2013·Application pending·0 cites
- 0751US4324048ALocator for rail aligning deviceCHEMETRON RAILWAY PROD·Filed 1980·Granted Apr 13, 1982·12 cites·3 claims
- 0849US4715534ARail fastening assembliesCHEMETRON RAILWAY PROD·Filed 1986·Granted Dec 29, 1987·17 cites·19 claims
- 0947US4844337ARailway rail assemblyCHEMETRON RAILWAY PROD·Filed 1987·Granted Jul 4, 1989·15 cites·6 claims
- 1041US4832261ARailway rail fastening assemblyCHEMETRON RAILWAY PROD·Filed 1987·Granted May 23, 1989·11 cites·31 claims
- 1136US4953787ATwo piece rail fastening assemblies for wooden cross tiesCHEMETRON RAILWAY PROD·Filed 1988·Granted Sep 4, 1990·8 cites·6 claims
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