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Gerald P. Simmons
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Morton, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Electric drive system with differential steering
Patent number
7,441,613
Issue date
Oct 28, 2008
Caterpillar Inc.
Gerald P. Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Electric drive system with differential steering
Patent number
6,892,837
Issue date
May 17, 2005
Caterpillar Inc.
Gerald P. Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Machine frame assembly for a track-type machine
Patent number
6,761,235
Issue date
Jul 13, 2004
Caterpillar Inc.
Gerald Paul Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Drive assembly for a track-type machine
Patent number
6,655,482
Issue date
Dec 2, 2003
Caterpillar Inc.
Gerald Paul Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Equalizer bar stop assembly for limiting movement of the equalizer...
Patent number
6,298,933
Issue date
Oct 9, 2001
Caterpillar Inc.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Adjustable operator station for a work machine and an associated me...
Patent number
6,086,142
Issue date
Jul 11, 2000
Caterpillar Inc.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Mental drive wheel for endless ground engaging drive belts
Patent number
5,758,932
Issue date
Jun 2, 1998
Caterpillar Inc.
Wayne A. Klopfenstein
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Hydraulic system for dynamic braking and secondary steering system...
Patent number
5,507,360
Issue date
Apr 16, 1996
Caterpillar Inc.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Electronic implement control
Patent number
5,467,541
Issue date
Nov 21, 1995
Caterpillar Inc.
Robert D. Greer
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Endless track work vehicle
Patent number
D314388
Issue date
Feb 5, 1991
Caterpillar Inc.
Thomas D. Brewer
D15 - Machines not elsewhere specified
Information
Patent Grant
Control system for a road planer
Patent number
4,929,121
Issue date
May 29, 1990
Caterpillar Paving Products Inc
Kevin C. Lent
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Mounting arrangement for a power train module of a vehicle
Patent number
4,893,687
Issue date
Jan 16, 1990
Caterpillar Inc.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Suspension mechanism for a track-type vehicle
Patent number
4,817,746
Issue date
Apr 4, 1989
Caterpillar Inc.
Robert J. Purcell
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method and apparatus for fragmenting asphalt
Patent number
4,560,207
Issue date
Dec 24, 1985
Caterpillar Tractor Co.
Larry G. Eftefield
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Control mechanism for operating a tractor
Patent number
4,541,497
Issue date
Sep 17, 1985
Caterpillar Tractor Co.
Craig W. Riediger
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Noise suppression arrangement for engine enclosures
Patent number
4,335,797
Issue date
Jun 22, 1982
Caterpillar Tractor Co.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Operator's station and mounting
Patent number
4,294,465
Issue date
Oct 13, 1981
Caterpillar Tractor Co.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Mounting arrangement for impact rock-breaker
Patent number
RE30769
Issue date
Oct 13, 1981
Caterpillar Tractor Co.
Delwin E. Cobb
299 - Mining or in situ disintegration of hard material
Information
Patent Grant
Parking brake mounting
Patent number
4,193,467
Issue date
Mar 18, 1980
Caterpillar Tractor Co.
Gerald P. Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Tower assembly
Patent number
4,163,498
Issue date
Aug 7, 1979
Caterpillar Tractor Co.
Frank A. Grooss
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Lift arm assembly
Patent number
4,162,872
Issue date
Jul 31, 1979
Caterpillar Tractor Co.
Frank A. Grooss
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Material handling means for use in earthworking machines
Patent number
4,134,506
Issue date
Jan 16, 1979
Caterpillar Tractor Co.
Gerald P. Simmons
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Mounting arrangement for right angle cassegranian telescope reflect...
Patent number
4,089,595
Issue date
May 16, 1978
Caterpillar Tractor Co.
Gerald P. Simmons
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Spherical shot producing machine
Patent number
4,088,429
Issue date
May 9, 1978
Caterpillar Tractor Co.
Eugene L. Helton
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Control linkage for crossing pivotal joint
Patent number
4,068,733
Issue date
Jan 17, 1978
Caterpillar Tractor Co.
Gerald Paul Simmons
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Steering arrangement for a double articulated wheel tractor
Patent number
4,064,959
Issue date
Dec 27, 1977
Caterpillar Tractor Co.
Robert N. Stedman
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Control pedal-mechanical speed with electrical direction control
Patent number
4,064,769
Issue date
Dec 27, 1977
Caterpillar Tractor Co.
John K. Amdall
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Peripherally cooled laser lens assembly
Patent number
4,057,332
Issue date
Nov 8, 1977
Caterpillar Tractor Co.
Hiram A. Brubaker
G02 - OPTICS
Information
Patent Grant
Chambered mirror construction for lasers
Patent number
4,053,241
Issue date
Oct 11, 1977
Caterpillar Tractor Co.
Gerald P. Simmons
G02 - OPTICS
Information
Patent Grant
Mounting arrangement for impact rock breaker
Patent number
3,990,595
Issue date
Nov 9, 1976
Caterpillar Tractor Co.
Delwin E. Cobb
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
Information
Patent Application
Electric drive system with differential steering
Publication number
20050173162
Publication date
Aug 11, 2005
Caterpillar Inc.
Gerald P. Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Electric drive system with differential steering
Publication number
20040069542
Publication date
Apr 15, 2004
Caterpillar Inc.
Gerald P. Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Drive assembly for a track-type machine
Publication number
20030116366
Publication date
Jun 26, 2003
Caterpillar Inc.
Gerald Paul Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Machine frame assembly for a track-type machine
Publication number
20030116364
Publication date
Jun 26, 2003
Gerald Paul Simmons
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS