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DURAKOOL, INC.
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ELKHART, IN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Gear tooth sensor with improved resolution and stability
Patent number
6,064,198
Issue date
May 16, 2000
Durakool, Inc.
Ronald J. Wolf
G01 - MEASURING TESTING
Information
Patent Grant
Rotary position sensor with circular magnet
Patent number
5,818,223
Issue date
Oct 6, 1998
Durakool, Inc.
Ronald J. Wolf
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Electronic circuit for automatically compensating for errors in a s...
Patent number
5,757,181
Issue date
May 26, 1998
Durakool Incorporated
Ronald J. Wolf
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Dual-element proximity sensor for sensing the direction of rotation...
Patent number
5,719,496
Issue date
Feb 17, 1998
Durakool Incorporated
Ronald J. Wolf
G01 - MEASURING TESTING
Information
Patent Grant
Variable reluctance sensor utilizing a magnetic bobbin
Patent number
5,504,424
Issue date
Apr 2, 1996
Durakool, Inc.
Craig R. Graf
G01 - MEASURING TESTING
Information
Patent Grant
Mechanically adjustable linear-output angular position sensor
Patent number
5,497,081
Issue date
Mar 5, 1996
Durakool Incorporated
Ronald J. Wolf
G01 - MEASURING TESTING
Information
Patent Grant
Contactless linear angular position sensor having an adjustable flu...
Patent number
5,332,965
Issue date
Jul 26, 1994
Durakool Incorporated
Ronald J. Wolf
G01 - MEASURING TESTING
Information
Patent Grant
Temperature stable proximity sensor with sensing of flux emanating...
Patent number
4,970,463
Issue date
Nov 13, 1990
Durakool Incorporated
Ronald J. Wolf
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73516251 - MERCURY MONITOR
Serial number
73516251
Filing date
Jan 4, 1985
Durakool, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73467065 - SWITCH SYSTEMS
Serial number
73467065
Filing date
Feb 24, 1984
Durakool, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73318364
Serial number
73318364
Registration number
1200944
Filing date
Jul 10, 1981
Durakool, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73015773 - HERMASEAL
Serial number
73015773
Registration number
1006277
Filing date
Mar 13, 1974
DURAKOOL, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73015772 - DURAKOOL
Serial number
73015772
Registration number
1006276
Filing date
Mar 13, 1974
DURAKOOL, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
71564321 - DURAKOOL
Serial number
71564321
Registration number
520055
Filing date
Aug 28, 1948
DURAKOOL, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments