Inventor
HEMATIAN JAMAL
CA25 patents
⚠️ This page may combine multiple inventors who share the name “HEMATIAN JAMAL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT STEEL CAR LTD
18 patentsUS7845288B2Dec 7, 2010
Rail road car truck and members thereof
NAT STEEL CAR LTD53 citations97
US7497169B2Mar 3, 2009
Rail road car truck and fittings therefor
NAT STEEL CAR LTD41 citations96
US7143700B2Dec 5, 2006
Rail road car truck and fittings therefor
NAT STEEL CAR LTD60 citations96
US7946229B2May 24, 2011
Rail road car truck
NAT STEEL CAR LTD31 citations92
US7823513B2Nov 2, 2010
Rail road car truck
NAT STEEL CAR LTD36 citations92
US7775163B2Aug 17, 2010
Rail road car and bearing adapter fittings therefor
NAT STEEL CAR LTD41 citations92
US7631603B2Dec 15, 2009
Rail road car truck and bolster therefor
NAT STEEL CAR LTD43 citations92
US8011305B2Sep 6, 2011
Symmetrical multi-unit railroad car
NAT STEEL CAR LTD27 citations88
US10286932B2May 14, 2019
Rail road car truck and members therefor
NAT STEEL CAR LTD3 citations83
US8973508B2Mar 10, 2015
Freight car with lifting location and method
NAT STEEL CAR LTD12 citations79
US11414107B2Aug 16, 2022
Railroad car truck damper wedge fittings
NAT STEEL CAR LTD2 citations73
US8939089B2Jan 27, 2015
Fitting for autorack railroad car housing
NAT STEEL CAR LTD2 citations63
US9278700B2Mar 8, 2016
Fittings for railroad car truck
NAT STEEL CAR LTD2 citations62
US11807282B2Nov 7, 2023
Railroad car truck damper wedge fittings
NAT STEEL CAR LTD1 citations60
US9475508B2Oct 25, 2016
Rail road car truck and fitting therefor
NAT STEEL CAR LTD0 citations52
US12570334B2Mar 10, 2026
Multi-unit railroad car and railroad car trucks therefor
NAT STEEL CAR LTD0 citations47
US9834230B2Dec 5, 2017
Hopper car discharge structure
NAT STEEL CAR LTD1 citations42
US9067605B2Jun 30, 2015
Fittings for autorack railroad car
NAT STEEL CAR LTD0 citations42
FORBES JAMES WILFRED
3 patentsUS8272333B2Sep 25, 2012
Rail road car truck and members thereof
FORBES JAMES WILFRED25 citations94
US8726812B2May 20, 2014
Rail road freight car truck with self-steering rocker
FORBES JAMES WILFRED1 citations61
US8720347B2May 13, 2014
Relieved bearing adapter for railroad freight car truck
FORBES JAMES WILFRED1 citations61