Assignee
CANADIAN NAT RAILWAY CO
CA·44 granted patents·30 pending applications·618 citations·filing 1975–2025
Top patents by PatentIndex Score
74 records- 0194US10125321B2Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2017·Granted Nov 13, 2018·6 cites·30 claims
- 0293US10521739B2Method and system for displaying a condition status of a component of a linear asset systemCANADIAN NAT RAILWAY CO·Filed 2019·Granted Dec 31, 2019·11 cites·5 claims
- 0393US7983806B2System and method for computing car switching solutions in a switchyard using car ETA as a factorCANADIAN NAT RAILWAY CO·Filed 2010·Granted Jul 19, 2011·18 cites·21 claims
- 0492US7457691B2Method and system for computing rail car switching solutions in a switchyard based on expected switching timeCANADIAN NAT RAILWAY CO·Filed 2006·Granted Nov 25, 2008·39 cites·55 claims
- 0591US10738245B2Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2018·Granted Aug 11, 2020·5 cites·19 claims
- 0691US7885736B2System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block pull timeCANADIAN NAT RAILWAY CO·Filed 2010·Granted Feb 8, 2011·14 cites·25 claims
- 0790US10100257B2Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2017·Granted Oct 16, 2018·2 cites·30 claims
- 0888US10943192B2Method and system for displaying work assignment status information in connection with work to be performed on a component of a linear asset infrastructureCANADIAN NAT RAILWAY CO·Filed 2019·Granted Mar 9, 2021·3 cites·35 claims
- 0988US10093861B2Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2017·Granted Oct 9, 2018·3 cites·29 claims
- 1087US4751882AArticulated lightweight piggyback railcarCANADIAN NAT RAILWAY CO·Filed 1986·Granted Jun 21, 1988·95 cites·9 claims
- 1186US7657348B2System and method for computing rail car switching solutions using dynamic classification track allocationCANADIAN NAT RAILWAY CO·Filed 2006·Granted Feb 2, 2010·19 cites·9 claims
- 1285US7751952B2System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for arrival rateCANADIAN NAT RAILWAY CO·Filed 2006·Granted Jul 6, 2010·19 cites·10 claims
- 1385US4687258ARemote control system for a locomotiveCANADIAN NAT RAILWAY CO·Filed 1985·Granted Aug 18, 1987·52 cites·16 claims
- 1484US10086852B2End-of car energy management system for railcarsCANADIAN NAT RAILWAY CO·Filed 2015·Granted Oct 2, 2018·9 cites·10 claims
- 1584US9336507B2System and method for providing a price quotation for a transportation service providing equipment selection capabilityCANADIAN NAT RAILWAY CO·Filed 2015·Granted May 10, 2016·2 cites·16 claims
- 1684US7536325B2Method and system for generating account reconciliation dataCANADIAN NAT RAILWAY CO·Filed 2002·Granted May 19, 2009·95 cites·12 claims
- 1783US11544641B2Method and system for inspecting railway tracksCANADIAN NAT RAILWAY CO·Filed 2020·Granted Jan 3, 2023·1 cites·15 claims
- 1883US7792762B2System and method for providing a price quotation for a transportation service providing route selection capabilityCANADIAN NAT RAILWAY CO·Filed 2008·Granted Sep 7, 2010·10 cites·11 claims
- 1982US7742849B2System and method for computing car switching solutions in a switchyard using car ETA as a factorCANADIAN NAT RAILWAY CO·Filed 2006·Granted Jun 22, 2010·16 cites·21 claims
- 2082US2023365868A1Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2023·Application pending·0 cites
- 2180US7792616B2System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block sizeCANADIAN NAT RAILWAY CO·Filed 2006·Granted Sep 7, 2010·14 cites·10 claims
- 2279US9141922B2System and method for providing a price quotation for a transportation service providing equipment selection capabilityCANADIAN NAT RAILWAY CO·Filed 2014·Granted Sep 22, 2015·1 cites·12 claims
- 2379US7546185B2System and method for computing railcar switching solutions using an available space search logic assigning different orders of preference to classification tracksCANADIAN NAT RAILWAY CO·Filed 2006·Granted Jun 9, 2009·15 cites·20 claims
- 2479US2025197726A1Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2025·Application pending·0 cites
- 2579US2025197727A1Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2025·Application pending·0 cites
- 2678US10866195B2Wheel integrity monitoring systemCANADIAN NAT RAILWAY CO·Filed 2017·Granted Dec 15, 2020·4 cites·14 claims
- 2777US7818101B2System and method for computing rail car switching solutions in a switchyard using an iterative methodCANADIAN NAT RAILWAY CO·Filed 2006·Granted Oct 19, 2010·12 cites·11 claims
- 2876US11842294B2Method and system for inspecting railway tracksCANADIAN NAT RAILWAY CO·Filed 2022·Granted Dec 12, 2023·0 cites·42 claims
- 2976US7814028B2System and method for providing a price quotation for a transportation service based on equipment ownershipCANADIAN NAT RAILWAY CO·Filed 2008·Granted Oct 12, 2010·4 cites·15 claims
- 3075US8019497B2System and method for computing rail car switching solutions using dynamic classification track allocationCANADIAN NAT RAILWAY CO·Filed 2009·Granted Sep 13, 2011·10 cites·8 claims
- 3175US7421397B2System and method for providing a price quotation for a transportation service providing route selection capabilityCANADIAN NAT RAILWAY CO·Filed 2002·Granted Sep 2, 2008·10 cites·10 claims
- 3274US2019171995A1System apparatus and method for conducting an online transaction to fulfill a rail-shipment service inquiry or a rail-shipment service orderingCANADIAN NAT RAILWAY CO·Filed 2019·Application pending·0 cites
- 3373US8055397B2System and method for computing rail car switching sequence in a switchyardCANADIAN NAT RAILWAY CO·Filed 2006·Granted Nov 8, 2011·9 cites·23 claims
- 3473US7680674B2System and method for providing a price quotation for a transportation service having promotional event notification capabilitiesCANADIAN NAT RAILWAY CO·Filed 2003·Granted Mar 16, 2010·8 cites·16 claims
- 3572US11702598B2Method and systems for transporting bitumen in solidified formCANADIAN NAT RAILWAY CO·Filed 2020·Granted Jul 18, 2023·0 cites·40 claims
- 3672US7539650B2System and method for providing a price quotation for a transportation service providing equipment selection capabilityCANADIAN NAT RAILWAY CO·Filed 2002·Granted May 26, 2009·9 cites·47 claims
- 3772US7363234B2System and method for providing a price quotation for a transportation service based on equipment ownershipCANADIAN NAT RAILWAY CO·Filed 2002·Granted Apr 22, 2008·5 cites·23 claims
- 3872US2020012991A1Method and System for Assigning Jobs to Prevent Employee Qualifications From LapsingCANADIAN NAT RAILWAY CO·Filed 2019·Application pending·0 cites
- 3971US2019266546A1User interface for providing a user with the ability to view job assignment informationCANADIAN NAT RAILWAY CO·Filed 2019·Application pending·0 cites
- 4071US2018260764A1System apparatus and method for conducting an online transaction to fulfill a rail-shipment service inquiry or a rail-shipment service orderingCANADIAN NAT RAILWAY CO·Filed 2018·Application pending·0 cites
- 4171US2018260766A1System apparatus and method for conducting an online transaction to fulfill a rail-shipment service inquiry or a rail-shipment service orderingCANADIAN NAT RAILWAY CO·Filed 2018·Application pending·0 cites
- 4271US2018260763A1System apparatus and method for conducting an online transaction to fulfill a rail-shipment service inquiry or a rail-shipment service orderingCANADIAN NAT RAILWAY CO·Filed 2018·Application pending·0 cites
- 4371US2018260765A1System apparatus and method for conducting an outline transaction to fulfill a rail-shipment service inquiry or a rail-shipment service orderingCANADIAN NAT RAILWAY CO·Filed 2018·Application pending·0 cites
- 4471US2018260761A1System apparatus and method for conducting an online transaction to fulfill a rail-shipment service inquiry or a rail-shipment service orderingCANADIAN NAT RAILWAY CO·Filed 2018·Application pending·0 cites
- 4570US7343300B2System and method for providing a price quotation for a hybrid transportation serviceCANADIAN NAT RAILWAY CO·Filed 2002·Granted Mar 11, 2008·3 cites·66 claims
- 4669US12545612B2Device for dewatering and method of making sameCANADIAN NAT RAILWAY CO·Filed 2024·Granted Feb 10, 2026·0 cites·23 claims
- 4769US2014365260A1Method and system for displaying work assignment status information in connection with work to be performed on a component of a linear asset infrastructureCANADIAN NAT RAILWAY CO·Filed 2014·Application pending·0 cites
- 4869US2019188625A1Method and system for communicating job assignment information to a userCANADIAN NAT RAILWAY CO·Filed 2018·Application pending·0 cites
- 4968US4007382ABipolar signal processing circuitCANADIAN NAT RAILWAY CO·Filed 1975·Granted Feb 8, 1977·28 cites·5 claims
- 5068US2014122142A1Method and system for communicating job assignment information to a userCANADIAN NAT RAILWAY CO·Filed 2014·Application pending·0 cites
Showing the top 50 of 74 patent records by PatentIndex Score.
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