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Douglas G. Haugen
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Durham, NC, US
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last 30 patents
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Patent Grant
Multiple discrete analyzer test apparatus and method
Patent number
5,369,484
Issue date
Nov 29, 1994
Akzo nv
Douglas G. Haugen
G01 - MEASURING TESTING
Information
Patent Grant
Method for scanning photodiodes utilizing a shutter mechanism havin...
Patent number
5,245,176
Issue date
Sep 14, 1993
Akzo N.V.
Douglas G. Haugen
G02 - OPTICS
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Patent Grant
Liquid crystal device for calibration and testing of optical instru...
Patent number
5,030,005
Issue date
Jul 9, 1991
Akzo nv
Charles H. Swope
G01 - MEASURING TESTING
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Patent Grant
Multichannel optical monitoring system
Patent number
5,002,392
Issue date
Mar 26, 1991
Akzo nv
C. Hermas Swope
G01 - MEASURING TESTING