Assignee
GUNDERSON INC
US38 patents
Top patents by PatentIndex Score
US5373792ADec 20, 1994
Railway gondola car incorporating flexible panels of composite sheet material
GUNDERSON INC136 citations97
US5979335ANov 9, 1999
Railroad freight car for carrying motor vehicles
GUNDERSON INC56 citations95
US5743192AApr 28, 1998
Railroad freight car for carrying motor vehicles
GUNDERSON INC83 citations95
US6546878B1Apr 15, 2003
Multi-unit railroad freight car for carrying cargo containers
GUNDERSON INC28 citations93
US4703699ANov 3, 1987
Lightweight container car
GUNDERSON INC44 citations93
US4599949AJul 15, 1986
Light weight container car
GUNDERSON INC42 citations93
US6510800B1Jan 28, 2003
Multi-unit railroad freight car for carrying cargo containers between container well units
GUNDERSON INC20 citations92
US5794537AAug 18, 1998
Deck-edge hinge for loading bridge
GUNDERSON INC50 citations92
US5758584AJun 2, 1998
Railroad car with lightweight center beam structure
GUNDERSON INC40 citations92
US5626083AMay 6, 1997
Railroad car with lightweight center beam structure
GUNDERSON INC46 citations92
US5611285AMar 18, 1997
Multipurpose railraod well car
GUNDERSON INC26 citations92
US5207161AMay 4, 1993
Side bearing arrangement for multi-unit railroad cars with different side bearings on adjacent car ends sharing a common truck
GUNDERSON INC50 citations92
US5170718ADec 15, 1992
Railroad freight car with well for stacked cargo containers
GUNDERSON INC33 citations92
US5054403AOct 8, 1991
Railroad freight car with well for stacked cargo containers
GUNDERSON INC51 citations92
US4893567AJan 16, 1990
Railroad freight car with well for stacked cargo containers
GUNDERSON INC43 citations92
US4624188ANov 25, 1986
Stack supporting container car
GUNDERSON INC53 citations91
US5279230AJan 18, 1994
Railroad well car body
GUNDERSON INC44 citations90
US6523484B2Feb 25, 2003
Center beam car with depressed cargo-carrying area
GUNDERSON INC25 citations89
US6431085B1Aug 13, 2002
Center beam car with depressed cargo-carrying area
GUNDERSON INC29 citations89
US5423269AJun 13, 1995
Railroad well car body including side sill reinforcing walkway structure
GUNDERSON INC45 citations89
US4756256AJul 12, 1988
Aerodynamic drag reduction for railcars
GUNDERSON INC72 citations89
US6357363B1Mar 19, 2002
Railroad tank car
GUNDERSON INC32 citations88
US4905795AMar 6, 1990
Handbrake operating linkage for multi-unit rail cars
GUNDERSON INC24 citations88
US5216285AJun 1, 1993
Freight car with electrical power distribution
GUNDERSON INC49 citations83
US6178895B1Jan 30, 2001
Flat-surfaced floor structure for boxcars
GUNDERSON INC15 citations81
US6059075AMay 9, 2000
Railroad freight car including pneumatic brake system module
GUNDERSON INC13 citations81
US4930426AJun 5, 1990
Device for changing the effective width of a container well of a freight car
GUNDERSON INC21 citations81
US5488912AFeb 6, 1996
Railway gondola car incorporating flexible panels of composite sheet material
GUNDERSON INC13 citations72
US7055441B2Jun 6, 2006
Counterbalanced deck for railroad freight car
GUNDERSON INC9 citations71
US6647895B2Nov 18, 2003
Center beam car with depressed cargo-carrying area
GUNDERSON INC11 citations71
US5379702AJan 10, 1995
Railroad well car including spacer for supporting a trailer
GUNDERSON INC13 citations71
US6325579B1Dec 4, 2001
Lift assist mechanism for railroad car deck
GUNDERSON INC11 citations69
US4805743AFeb 21, 1989
Handbrake operating linkage for multi-unit rail cars
GUNDERSON INC12 citations69
US5228393AJul 20, 1993
Center plate friction reducing assembly
GUNDERSON INC7 citations65
US7546808B2Jun 16, 2009
Railroad car with lightweight center beam structure
GUNDERSON INC5 citations63
US7506591B2Mar 24, 2009
Center beam car with depressed cargo-carrying area
GUNDERSON INC2 citations60
US6883437B2Apr 26, 2005
Center beam car with depressed cargo-carrying area
GUNDERSON INC2 citations60
US6324996B1Dec 4, 2001
Corner assembly for railway boxcar doorway
GUNDERSON INC6 citations54