Inventor
BIS TOMASZ
CA31 patents
⚠️ This page may combine multiple inventors who share the name “BIS TOMASZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT STEEL CAR LTD
25 patentsUS7921783B2Apr 12, 2011
Hopper car with lading dislodgement fittings and method of operation
NAT STEEL CAR LTD86 citations98
US8025014B2Sep 27, 2011
Railroad freight car
NAT STEEL CAR LTD33 citations96
US7434519B2Oct 14, 2008
Rail road freight car
NAT STEEL CAR LTD35 citations96
US7681506B2Mar 23, 2010
Truck bolster
NAT STEEL CAR LTD48 citations94
US7878125B2Feb 1, 2011
Railroad freight car
NAT STEEL CAR LTD28 citations92
US7775163B2Aug 17, 2010
Rail road car and bearing adapter fittings therefor
NAT STEEL CAR LTD41 citations92
US7757611B2Jul 20, 2010
Railroad freight car
NAT STEEL CAR LTD15 citations92
US7631603B2Dec 15, 2009
Rail road car truck and bolster therefor
NAT STEEL CAR LTD43 citations92
US7559284B2Jul 14, 2009
Railroad freight car
NAT STEEL CAR LTD16 citations92
US7461600B2Dec 9, 2008
Rail road freight car structure
NAT STEEL CAR LTD24 citations92
US6354778B1Mar 12, 2002
Retractable container stop and guide assembly for railroad freight cars
NAT STEEL CAR LTD25 citations92
US6003445ADec 21, 1999
Retractable container stop and guide assembly for railroad freight cars
NAT STEEL CAR LTD36 citations92
US6866452B2Mar 15, 2005
Cross member with container stop
NAT STEEL CAR LTD18 citations91
US10214224B2Feb 26, 2019
Rail road hopper car
NAT STEEL CAR LTD5 citations84
US8356560B2Jan 22, 2013
Railroad car and door mechanism therefor
NAT STEEL CAR LTD10 citations84
US10239542B2Mar 26, 2019
Railroad car and door mechanism therefor
NAT STEEL CAR LTD2 citations73
US10377392B2Aug 13, 2019
Autorack railroad car having convertible deck structure
NAT STEEL CAR LTD4 citations72
US10023206B2Jul 17, 2018
Railroad hopper car and door mechanism therefor
NAT STEEL CAR LTD3 citations72
US7494309B2Feb 24, 2009
Cross member with container stop
NAT STEEL CAR LTD6 citations72
US9266539B2Feb 23, 2016
Railroad car and door mechanism therefor
NAT STEEL CAR LTD1 citations63
US8047140B2Nov 1, 2011
Rail road hopper car structure
NAT STEEL CAR LTD2 citations63
US10648217B2May 12, 2020
Railroad hopper car body fittings
NAT STEEL CAR LTD1 citations59
US12054182B2Aug 6, 2024
Railroad freight car access fittings
NAT STEEL CAR LTD0 citations54
US11697437B2Jul 11, 2023
Railroad hopper car structure and gate therefor
NAT STEEL CAR LTD0 citations51
US10689012B2Jun 23, 2020
Railroad freight car access fittings
NAT STEEL CAR LTD0 citations44
FORBES JAMES W
4 patentsUS8113126B2Feb 14, 2012
Rail road car truck and bolster therefor
FORBES JAMES W31 citations92
US8622004B2Jan 7, 2014
Rail road hopper car ridge fittings
FORBES JAMES W7 citations84
US8596203B2Dec 3, 2013
Railroad car and door mechanism therefor
FORBES JAMES W19 citations84
US8065964B2Nov 29, 2011
Rail road hopper car ridge fittings
FORBES JAMES W5 citations74