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John C. Gaynor
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Des Plaines, IL, US
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last 30 patents
Information
Patent Grant
Process for producing tabular acicular gypsum crystals
Patent number
5,106,600
Issue date
Apr 21, 1992
United States Gypsum Company
Norman E. Johnstone
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Tabular acicular gypsum and method of filling paper
Patent number
4,801,355
Issue date
Jan 31, 1989
United States Gypsum Company
Norman E. Johnstone
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for solidifying waste slime suspensions
Patent number
4,457,781
Issue date
Jul 3, 1984
United States Gypsum Company
Jay W. Palmer
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Phosphoanhydrite process
Patent number
4,452,770
Issue date
Jun 5, 1984
United States Gypsum Company
Jay W. Palmer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Phosphohemihydrate process for purification of gypsum
Patent number
4,424,196
Issue date
Jan 3, 1984
United States Gypsum Company
Jay W. Palmer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for purifying phosphogypsum
Patent number
4,421,731
Issue date
Dec 20, 1983
United States Gypsum Company
Jay W. Palmer
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for rapid conversion of fluoroanhydrite to gypsum
Patent number
4,402,922
Issue date
Sep 6, 1983
United States Gypsum Company
John C. Gaynor
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for reducing radioactive contamination in phosphogypsum
Patent number
4,388,292
Issue date
Jun 14, 1983
United States Gypsum Company
Jay W. Palmer
C01 - INORGANIC CHEMISTRY