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Steven H. Christiansen
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Angleton, TX, US
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last 30 patents
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Patent Grant
Process for the preparation of a stable salt-free iron chelate for...
Patent number
5,472,633
Issue date
Dec 5, 1995
The Dow Chemical Company
Freddie Griffin
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for removing metal ions from liquids
Patent number
5,447,603
Issue date
Sep 5, 1995
The Dow Chemical Company
Robert J. Michalowski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for absorption of sulfur compounds from fluids
Patent number
5,342,593
Issue date
Aug 30, 1994
The Dow Chemical Company
Steven H. Christiansen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for absorption of sulfur compounds from fluids using piperi...
Patent number
5,236,678
Issue date
Aug 17, 1993
The Dow Chemical Company
Dane Chang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for selectively concentrating the radioactivity of thorium...
Patent number
5,223,181
Issue date
Jun 29, 1993
The Dow Chemical Company
David A. Wilson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Composition for alkaline peroxide bleaching of wood pulp using a qu...
Patent number
5,145,558
Issue date
Sep 8, 1992
The Dow Chemical Company
Steven H. Christiansen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for absorption of sulfur compounds from fluids
Patent number
5,108,723
Issue date
Apr 28, 1992
The Dow Chemical Company
Dane Chang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for absorption of sulfur compounds from fluids
Patent number
5,098,681
Issue date
Mar 24, 1992
The Dow Chemical Company
Steven H. Christiansen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for alkaline peroxide bleaching of wood pulp using a quater...
Patent number
5,013,404
Issue date
May 7, 1991
The Dow Chemical Company
Steven H. Christiansen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Preparation of piperazinones for use as sulfur dioxide absorbents
Patent number
4,980,471
Issue date
Dec 25, 1990
The Dow Chemical Company
Steven H. Christiansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Bleaching of cellulosic pulps using hydrogen peroxide
Patent number
4,732,650
Issue date
Mar 22, 1988
The Dow Chemical Company
Robert J. Michalowski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Stabilization of peroxide systems in the presence of alkaline earth...
Patent number
4,614,646
Issue date
Sep 30, 1986
The Dow Chemical Company
Steven H. Christiansen
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...