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Wallace W. Yau
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Newark, DE, US
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last 30 patents
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Patent Grant
Osmotic method for determining the molecular weight of solutes in s...
Patent number
4,972,701
Issue date
Nov 27, 1990
E. I. Du Pont de Nemours and Company
Wallace W. Yau
G01 - MEASURING TESTING
Information
Patent Grant
Viscosity detection method for liquid chromatography systems with c...
Patent number
4,876,882
Issue date
Oct 31, 1989
E. I. Du Pont de Nemours and Company
Wallace W. Yau
G01 - MEASURING TESTING
Information
Patent Grant
Differential pressure capillary viscometer
Patent number
4,793,174
Issue date
Dec 27, 1988
E. I. Du Pont de Nemours and Company
Wallace W. Yau
G01 - MEASURING TESTING
Information
Patent Grant
Differential pressure capillary viscometer for measuring viscosity...
Patent number
4,627,271
Issue date
Dec 9, 1986
E. I. Du Pont de Nemours and Company
Scot D. Abbott
G01 - MEASURING TESTING
Information
Patent Grant
Differential pressure capillary viscometer for measuring viscosity...
Patent number
4,578,990
Issue date
Apr 1, 1986
E. I. Du Pont de Nemours and Company
Scot D. Abbott
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus and method for sedimentation field flow fractionation
Patent number
4,448,679
Issue date
May 15, 1984
E. I. Du Pont de Nemours and Company
Charles H. Dilks
G01 - MEASURING TESTING
Information
Patent Grant
Sedimentation field flow fractionation channel and method
Patent number
4,446,014
Issue date
May 1, 1984
Charles H. Dilks
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Rotor for sedimentation field flow fractionation
Patent number
4,285,809
Issue date
Aug 25, 1981
E. I. Du Pont de Nemours and Company
Charles H. Dilks
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Method and apparatus for field flow fractionation
Patent number
4,285,810
Issue date
Aug 25, 1981
E. I. Du Pont de Nemours and Company
Joseph J. Kirkland
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Apparatus for field flow fractionation
Patent number
4,284,498
Issue date
Aug 18, 1981
E. I. Du Pont de Nemours and Company
John W. Grant
G01 - MEASURING TESTING
Information
Patent Grant
Bimodal chromatographic resolving zone
Patent number
4,160,728
Issue date
Jul 10, 1979
E. I. Du Pont de Nemours and Company
Joseph J. Kirkland
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL