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Michael L. Cloud
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Canton, OK, US
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Patents Grants
last 30 patents
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Patent Grant
Compositions with synthetic gypsum and methods
Patent number
9,944,556
Issue date
Apr 17, 2018
United States Gypsum Company
Dennis Mark Lettkeman
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Oil well cementing products with synthetic gypsum and methods
Patent number
9,346,996
Issue date
May 24, 2016
United States Gypsum Company
Dennis Mark Lettkeman
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method of modifying beta stucco using diethylene-triamine-pentaacet...
Patent number
8,343,273
Issue date
Jan 1, 2013
United States Gypsum Company
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for manufacturing ultra low consistency alpha- and beta- bl...
Patent number
7,588,634
Issue date
Sep 15, 2009
United States Gypsum Company
Michael R. Lynn
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for multi-stage calcining of gypsum to produce an anhydrite...
Patent number
5,954,497
Issue date
Sep 21, 1999
USG Corporation
Michael L. Cloud
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Apparatus for continuous refractoryless calcining of gypsum
Patent number
5,927,968
Issue date
Jul 27, 1999
United States Gypsum Company
George E. Rowland
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Method for continuous refractoryless calcining of gypsum
Patent number
5,743,954
Issue date
Apr 28, 1998
United States Gypsum Company
George E. Rowland
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Method and system for multi-stage calcining of gypsum to produce an...
Patent number
5,743,728
Issue date
Apr 28, 1998
USG Corporation
Michael L. Cloud
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
COMPOSITIONS WITH SYNTHETIC GYPSUM AND METHODS
Publication number
20160107931
Publication date
Apr 21, 2016
United States Gypsum Company
Dennis Mark Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
PROCESS FOR MANUFACTURING ULTRA LOW CONSISTENCY ALPHA- AND BETA- BL...
Publication number
20080069762
Publication date
Mar 20, 2008
United States Gypsum Company
Michael R. LYNN
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES