Inventor
SAXTON GREGORY J
US37 patents
⚠️ This page may combine multiple inventors who share the name “SAXTON GREGORY J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GUNDERSON INC
22 patentsUS5979335ANov 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
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
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
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
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
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
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
GUNDERSON LLC
14 patentsUS7806058B2Oct 5, 2010
Tank car stub sill attachment
GUNDERSON LLC11 citations81
US7861659B2Jan 4, 2011
Lightweight hopper car with through center sill
GUNDERSON LLC19 citations78
US7757610B2Jul 20, 2010
Shortened container well
GUNDERSON LLC12 citations78
US7654206B2Feb 2, 2010
Container support casting for corner of container-carrying well car
GUNDERSON LLC7 citations74
US11142225B2Oct 12, 2021
Covered hopper car
GUNDERSON LLC2 citations73
US9296398B2Mar 29, 2016
Protective structure for top of tank car
GUNDERSON LLC4 citations71
US9694828B2Jul 4, 2017
Operating mechanism for tank car bottom valve
GUNDERSON LLC5 citations66
US12409872B1Sep 9, 2025
Coupler cross keys
GUNDERSON LLC0 citations51
US7607396B2Oct 27, 2009
Container car side sills
GUNDERSON LLC3 citations51
US12168466B2Dec 17, 2024
Open top gondola railcars
GUNDERSON LLC0 citations50
US11820407B2Nov 21, 2023
Covered hopper car
GUNDERSON LLC0 citations50
US10562548B2Feb 18, 2020
Attachment of articulated connectors in multi-unit freight cars
GUNDERSON LLC0 citations42
US11702117B2Jul 18, 2023
Stub sill assemblies
GUNDERSON LLC0 citations40
US9944302B1Apr 17, 2018
Handbrake operating linkage for railroad tank car
GUNDERSON LLC0 citations36