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Stephen V. Lunzman
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Chillicothe, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Work machine hydraulics control system
Patent number
8,403,098
Issue date
Mar 26, 2013
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Front-wheel drive steering compensation method and system
Patent number
7,712,559
Issue date
May 11, 2010
Caterpillar Inc.
John Andrew Yeoman
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Control for an all-wheel-drive vehicle
Patent number
7,549,498
Issue date
Jun 23, 2009
Caterpillar Inc.
Stephen Victor Lunzman
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Configurable hydraulic control system
Patent number
7,441,404
Issue date
Oct 28, 2008
Caterpillar Inc.
Lonnie James Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Systems and methods for the mitigation of hop
Patent number
7,364,003
Issue date
Apr 29, 2008
Caterpillar Inc.
Bradford Jay Holt
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Front-wheel drive steering compensation method and system
Patent number
7,325,636
Issue date
Feb 5, 2008
Caterpillar Inc.
John Andrew Yeoman
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
System and method for controlling hydraulic flow
Patent number
6,725,131
Issue date
Apr 20, 2004
Caterpillar Inc.
Stephen V. Lunzman
G05 - CONTROLLING REGULATING
Information
Patent Grant
Electro-hydraulic valve control system and method
Patent number
6,662,705
Issue date
Dec 16, 2003
Caterpillar Inc.
Xiaodong Huang
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Control for electro-hydraulic valve arrangement
Patent number
6,598,391
Issue date
Jul 29, 2003
Caterpillar Inc.
Stephen Victor Lunzman
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Power management control system for a hydraulic work machine
Patent number
5,967,756
Issue date
Oct 19, 1999
Caterpillar Inc.
Lonnie J. Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Simulation modeling of non-linear hydraulic actuator response
Patent number
5,953,977
Issue date
Sep 21, 1999
Carnegie Mellon University
Murali Krishna
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Torque limiting control system for a hydraulic work machine
Patent number
5,951,258
Issue date
Sep 14, 1999
Caterpillar Inc.
Kevin J. Lueschow
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Hydraulic control system having a bypass valve
Patent number
5,701,933
Issue date
Dec 30, 1997
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulic drive system
Patent number
5,680,760
Issue date
Oct 28, 1997
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulic flow priority system
Patent number
5,560,387
Issue date
Oct 1, 1996
Caterpillar Inc.
Lonnie J. Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Control system and method for a hydraulic actuator with velocity an...
Patent number
5,540,049
Issue date
Jul 30, 1996
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulic flow priority system
Patent number
5,490,384
Issue date
Feb 13, 1996
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Displacement controlled hydraulic proportional valve
Patent number
5,366,202
Issue date
Nov 22, 1994
Caterpillar Inc.
Stephen V. Lunzman
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Cruise control for hydraulically driven vehicle
Patent number
5,348,115
Issue date
Sep 20, 1994
Caterpillar Inc.
Lonnie J. Devier
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Hydraulic control apparatus
Patent number
5,305,681
Issue date
Apr 26, 1994
Caterpillar Inc.
Lonnie J. Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Redundant control system for a work vehicle
Patent number
5,299,420
Issue date
Apr 5, 1994
Caterpillar Inc.
Lonnie J. Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Method and apparatus for limiting the power output of a hydraulic s...
Patent number
5,267,441
Issue date
Dec 7, 1993
Caterpillar Inc.
Lonnie J. Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulic control apparatus with mode selection
Patent number
5,249,421
Issue date
Oct 5, 1993
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
On-off pressure cutoff control for a variable displacement hydrauli...
Patent number
5,197,864
Issue date
Mar 30, 1993
Caterpillar Inc.
Stephen V. Lunzman
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Control system for integrating a work attachment to a work vehicle
Patent number
5,182,908
Issue date
Feb 2, 1993
Caterpillar Inc.
Lonnie J. Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
Information
Patent Application
Front-wheel drive steering compensation method and system
Publication number
20080091325
Publication date
Apr 17, 2008
Caterpillar Inc.
John Andrew Yeoman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Work machine hydraulics control system
Publication number
20060191732
Publication date
Aug 31, 2006
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Systems and methods for the mitigation of hop
Publication number
20060191692
Publication date
Aug 31, 2006
Caterpillar Inc.
Bradford Jay Holt
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Application
Configurable hydraulic control system
Publication number
20060112685
Publication date
Jun 1, 2006
Caterpillar Inc.
Lonnie James Devier
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Control for an all-wheel-drive vehicle
Publication number
20060065465
Publication date
Mar 30, 2006
Stephen Victor Lunzman
B60 - VEHICLES IN GENERAL
Information
Patent Application
Front-wheel drive steering compensation method and system
Publication number
20060042838
Publication date
Mar 2, 2006
Caterpillar Inc.
John Andrew Yeoman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
System and method for controlling hydraulic flow
Publication number
20030121409
Publication date
Jul 3, 2003
Caterpillar Inc.
Stephen V. Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
System and method for controlling hydraulic flow
Publication number
20030125840
Publication date
Jul 3, 2003
Caterpillar Inc.
Stephen V. Lunzman
G05 - CONTROLLING REGULATING
Information
Patent Application
Electro-hydraulic valve control system and method
Publication number
20030106313
Publication date
Jun 12, 2003
Caterpillar Inc.
Xiaodong Huang
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Application
Control for electro-hydraulic valve arrangement
Publication number
20030041728
Publication date
Mar 6, 2003
Caterpillar Inc.
Stephen Victor Lunzman
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING