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Durrell U. Howard
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San Antonio, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Steer wheel control system with reciprocating cylinder
Patent number
7,806,419
Issue date
Oct 5, 2010
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Steer wheel control system with stationary piston and reciprocating...
Patent number
7,219,908
Issue date
May 22, 2007
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Precision steer wheel control system with external solenoid
Patent number
7,207,579
Issue date
Apr 24, 2007
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Precision steer wheel control system with remote trim valve assembly
Patent number
7,207,580
Issue date
Apr 24, 2007
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Steer wheel control system with dual pistons connected to a common...
Patent number
7,118,118
Issue date
Oct 10, 2006
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Steer wheel control system with trimmable rotary plate
Patent number
6,994,361
Issue date
Feb 7, 2006
Durrell U Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Precision steer wheel control system with internal solenoid
Patent number
6,817,620
Issue date
Nov 16, 2004
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Vehicle steering stabilizer with detent ramp in rotary plate
Patent number
6,530,585
Issue date
Mar 11, 2003
Durrell U Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Steering stabilizer with trimming accumulator
Patent number
6,520,520
Issue date
Feb 18, 2003
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Trimming apparatus for steer wheel control systems
Patent number
6,520,519
Issue date
Feb 18, 2003
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Center holding assembly for vehicle steering systems
Patent number
6,422,582
Issue date
Jul 23, 2002
Durrell U. Howard
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Steering shaft centering assembly
Patent number
6,272,947
Issue date
Aug 14, 2001
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Vehicle steering compensator with air actuated trim mechanism
Patent number
6,267,395
Issue date
Jul 31, 2001
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Power steering system with controlled centering
Patent number
6,065,561
Issue date
May 23, 2000
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Rotary centering compensator for vehicle steering systems
Patent number
6,003,887
Issue date
Dec 21, 1999
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Steering column centering assembly
Patent number
5,816,594
Issue date
Oct 6, 1998
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Sealed self-adjusting bearing assembly
Patent number
5,816,731
Issue date
Oct 6, 1998
Durrell U. Howard
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
External sliding aircraft door
Patent number
5,673,874
Issue date
Oct 7, 1997
AirDoor, Inc.
Durrell U. Howard
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Power centering compensator for vehicle steering systems
Patent number
5,536,028
Issue date
Jul 16, 1996
Durrell U. Howard
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Detent centering compensator for vehicle steering systems
Patent number
5,527,053
Issue date
Jun 18, 1996
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Self-adjusting bearing assembly
Patent number
5,435,652
Issue date
Jul 25, 1995
Durrell U. Howard
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
External sliding aircraft door
Patent number
5,259,576
Issue date
Nov 9, 1993
Durrell U. Howard
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Trailer coupling means
Patent number
RE33012
Issue date
Aug 8, 1989
Durrell U. Howard
280 - Land vehicles
Information
Patent Grant
Remotely adjustable steering compensator
Patent number
4,534,577
Issue date
Aug 13, 1985
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Remotely adjustable steering compensator
Patent number
4,418,931
Issue date
Dec 6, 1983
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Snap-action battery cable switch
Patent number
4,410,775
Issue date
Oct 18, 1983
Durrell U. Howard
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Remotely adjustable compensator for centering steering systems
Patent number
4,410,193
Issue date
Oct 18, 1983
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Speed responsive trailer stabilizer with zero slack
Patent number
4,313,616
Issue date
Feb 2, 1982
Durrell U. Howard
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Battery cable switch
Patent number
4,306,126
Issue date
Dec 15, 1981
Durrell U. Howard
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Self-threading bobber
Patent number
4,251,941
Issue date
Feb 24, 1981
Durrell U. Howard
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Patents Applications
last 30 patents
Information
Patent Application
Precision steer wheel control system with remote trim valve assembly
Publication number
20050167939
Publication date
Aug 4, 2005
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Steer wheel control system with trimmable rotary plate
Publication number
20040056443
Publication date
Mar 25, 2004
Durrell U. Howard
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Application
Steering stabilizer with valved accumulator
Publication number
20020153687
Publication date
Oct 24, 2002
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Steering stabilizer with valved accumulator
Publication number
20020140197
Publication date
Oct 3, 2002
Durrell U. Howard
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS