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Conversion of one form of calcium sulfate to another
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C01F11/466
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CHEMISTRY METALLURGY
C01
Inorganic chemistry
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COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F11/00
Compounds of calcium, strontium, or barium
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C01F11/466
Conversion of one form of calcium sulfate to another
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Patents Grants
last 30 patents
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Patent Grant
Calcined gypsum treatment device and calcined gypsum treatment method
Patent number
10,974,993
Issue date
Apr 13, 2021
Yoshino Gypsum Co., Ltd.
Ken Hayase
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for producing phosphoric acid and by-producing alpha-hemihyd...
Patent number
10,745,278
Issue date
Aug 18, 2020
Kingenta Ecological Engineering Group Co., Ltd.
Zhaoping Hu
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing calcium sulfate
Patent number
10,662,072
Issue date
May 26, 2020
Prayon Technologies
Thomas Henry
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing calcium sulphate hemihydrate with unique prope...
Patent number
10,611,646
Issue date
Apr 7, 2020
LIDDS AB
Niklas Axén
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Two-stage calcination method, and plant for same
Patent number
10,556,806
Issue date
Feb 11, 2020
Claudius Peters Projects GmbH
Volker Göcke
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing calcium sulphate hemihydrate with unique prope...
Patent number
10,351,437
Issue date
Jul 16, 2019
LIDDS AB
Niklas Axén
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Calcium sulfate crystals and methods for making the same
Patent number
10,280,288
Issue date
May 7, 2019
Georgia-Pacific Gypsum LLC
Mianxue Wu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing alpha-calcium sulfate hemihydrate bone graft
Patent number
10,159,763
Issue date
Dec 25, 2018
3D GLOBAL BIOTECH INC.
Keng-Liang Ou
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing α-calcium sulfate hemihydrate with calcium sul...
Patent number
10,040,696
Issue date
Aug 7, 2018
Shandong Borui New Material Technology Co., Ltd
Pengxuan Duan
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
No fiber calcination of gypsum for gypsum fiberboard
Patent number
10,023,496
Issue date
Jul 17, 2018
United States Gypsum Company
Yufeng Xu
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for reducing elemental sulfur in gypsum products
Patent number
9,656,876
Issue date
May 23, 2017
CertainTeed Gypsum, Inc.
John W. College
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for continuous modification of dihydrate gypsum and modifie...
Patent number
9,458,025
Issue date
Oct 4, 2016
Yoshino Gypsum Co., Ltd.
Itaru Yokoyama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of forming a gypsum based product
Patent number
9,242,870
Issue date
Jan 26, 2016
Saint-Gobain Placo SAS
Jean-Louis Mongrolle
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for continuous modification of dihydrate gypsum and modifie...
Patent number
8,529,863
Issue date
Sep 10, 2013
Yoshino Gypsum Co., Ltd.
Itaru Yokoyama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
System and method for the production of gypsum using heat recovery
Patent number
8,388,926
Issue date
Mar 5, 2013
Certainteed Gypsum, Inc.
John W. College
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
System and method for the production of alpha type gypsum using hea...
Patent number
7,955,587
Issue date
Jun 7, 2011
Certainteed Gypsum, Inc.
John College
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
System and method for the production of alpha type gypsum using hea...
Patent number
7,498,014
Issue date
Mar 3, 2009
Certainteed Gypsum, Inc.
John College
F26 - DRYING
Information
Patent Grant
Method of producing surgical grade calcium sulphate
Patent number
6,780,391
Issue date
Aug 24, 2004
Biocomposites Limited
John Joseph Cooper
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for the preparation of lactic acid and calcium sulphate dihy...
Patent number
6,747,173
Issue date
Jun 8, 2004
Purac Biochem B.V.
Markus Gerkema
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the preparation of lactic acid and calcium sulphate dihy...
Patent number
6,632,966
Issue date
Oct 14, 2003
Purac Biochem B.V.
Markus Gerkema
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the preparation of low-chloride plaster products from ca...
Patent number
5,324,501
Issue date
Jun 28, 1994
A.I.R. Lippewerk Recycling GmbH
Diethel M. Koehnk
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Work-up of waste materials from barium or strontium sulfide leaching
Patent number
5,312,604
Issue date
May 17, 1994
Kali-Chemie AG
Paul Jaeger
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the conversion of calcium sulfate dihydrate into alpha-...
Patent number
5,248,487
Issue date
Sep 28, 1993
Jorg Bold
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for preparation of purified calcium sulfate in an aqueous m...
Patent number
5,173,284
Issue date
Dec 22, 1992
Lafarge Coppee
Jacques Moisset
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for preparing calcium sulfate anhydrite
Patent number
5,169,444
Issue date
Dec 8, 1992
Gebruder Knauf Westdeutsche Gipswerke KG
Friedrich-Wilhelm Boos
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Fluidized calcining process
Patent number
5,139,749
Issue date
Aug 18, 1992
T.A.S., Inc.
Justin C. White
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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
Process for preparing calcium sulfate alpha hemihydrate
Patent number
5,093,093
Issue date
Mar 3, 1992
Promineral Gesellschaft zur Verwendung von Mineralstoffen mbH
Thomas Koslowski
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for making calcium sulfate alpha-hemihydrate from calcium s...
Patent number
5,015,450
Issue date
May 14, 1991
Promineral Gesellschaft zur Verwendung von Mineralstoffen mbH
Thomas J. Koslowski
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING CALCIUM SULPHATE HEMIHYDRATE WITH UNIQUE PROPE...
Publication number
20190345038
Publication date
Nov 14, 2019
LIDDS AB
Niklas AXÉN
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PRODUCING CALCIUM SULFATE
Publication number
20190322540
Publication date
Oct 24, 2019
PRAYON TECHNOLOGIES
Thomas HENRY
C01 - INORGANIC CHEMISTRY
Information
Patent Application
TWO-STAGE CALCINATION METHOD, AND PLANT FOR SAME
Publication number
20190202709
Publication date
Jul 4, 2019
Claudius Peters Projects GmbH
Volker GÖCKE
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
A NEW METHOD FOR PRODUCING CALCIUM SULPHATE HEMIHYDRATE WITH UNIQUE...
Publication number
20190119122
Publication date
Apr 25, 2019
LIDDS AB
Niklas AXÉN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
CALCINED GYPSUM TREATMENT DEVICE AND CALCINED GYPSUM TREATMENT METHOD
Publication number
20190016633
Publication date
Jan 17, 2019
YOSHINO GYPSUM CO., LTD.
Ken HAYASE
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING PHOSPHORIC ACID AND BY-PRODUCING ALPHA-HEMIHYD...
Publication number
20180257938
Publication date
Sep 13, 2018
KINGENTA ECOLOGICAL ENGINEERING GROUP CO., LTD.
Zhaoping Hu
C01 - INORGANIC CHEMISTRY
Information
Patent Application
GYPSUM BOARDS WITH POLYMER COATING AND METHODS FOR MAKING SAME
Publication number
20180080226
Publication date
Mar 22, 2018
United States Gypsum Company
Runhai LU
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD FOR PRODUCING ALPHA-CALCIUM SULFATE HEMIHYDRATE BONE GRAFT
Publication number
20180015200
Publication date
Jan 18, 2018
3D Global Biotech Inc.
KENG-LIANG OU
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
BONE REPAIRING MATERIAL AND METHOD FOR PRODUCING THEREOF
Publication number
20180015206
Publication date
Jan 18, 2018
3D Global Biotech Inc.
KENG-LIANG OU
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Method for preparing a-calcium sulfate hemihydrate with calcium sul...
Publication number
20170247262
Publication date
Aug 31, 2017
Shandong Borui New Material Technology Co., Ltd
Hongyu Wang
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method For Reducing Elemental Sulfur In Gypsum Products
Publication number
20170121183
Publication date
May 4, 2017
CertainTeed Gypsum, Inc.
John W. College
C01 - INORGANIC CHEMISTRY
Information
Patent Application
MICROWAVE HEATING FOR GYPSUM MANUFACTURING PROCESSES
Publication number
20160122197
Publication date
May 5, 2016
Georgia-Pacific Gypsum LLC
Mianxue Wu
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method of Forming a Gypsum Based Product
Publication number
20140377162
Publication date
Dec 25, 2014
Jean-Louis Mongrolle
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIE...
Publication number
20140030173
Publication date
Jan 30, 2014
Itaru YOKOYAMA
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
PAPER PRODUCT
Publication number
20120024488
Publication date
Feb 2, 2012
Tarja Turkki
C01 - INORGANIC CHEMISTRY
Information
Patent Application
System and Method for the Production of Gypsum Using Heat Recovery
Publication number
20110300032
Publication date
Dec 8, 2011
CertainTeed Gypsum, Inc.
John W. College
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
GYPSUM PRODUCT
Publication number
20110132560
Publication date
Jun 9, 2011
Tarja Turkki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIE...
Publication number
20110135930
Publication date
Jun 9, 2011
YOSHINO GYPSUM CO., LTD.
Itaru Yokoyama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
USE OF HYDROPHOBINS AS ADDITIVES IN THE CRYSTALLIZATION OF SOLIDS
Publication number
20100166627
Publication date
Jul 1, 2010
BASF SE
Ulf Baus
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
GYPSUM PRODUCT AND PROCESS FOR ITS PREPARATION
Publication number
20100062255
Publication date
Mar 11, 2010
Reijo Aksela
C01 - INORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR PRODUCING GYPSUM
Publication number
20100034727
Publication date
Feb 11, 2010
Tarja Turkki
C01 - INORGANIC CHEMISTRY
Information
Patent Application
System and Method for the Production of Alpha Type Gypsum Using Hea...
Publication number
20090308284
Publication date
Dec 17, 2009
John College
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
METHOD FOR STABILISING SOLUBLE METASTABLE SOLUBLE ANHYDRITE III, ME...
Publication number
20090293772
Publication date
Dec 3, 2009
Edouard Dumoulin
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
Information
Patent Application
System and method for the production of alpha type gypsum using hea...
Publication number
20070172413
Publication date
Jul 26, 2007
John College
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
Method of reducing the solubility of calcium sulfate dihydrate in a...
Publication number
20040241082
Publication date
Dec 2, 2004
Bruce R Kerr
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method for the preparation of lactic acid and calcium sulphate dihy...
Publication number
20030125581
Publication date
Jul 3, 2003
Markus Gerkema
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Method for the preparation of lactic acid and calcium sulphate dihy...
Publication number
20030044944
Publication date
Mar 6, 2003
Purac Biochem B.V.
Markus Gerkema
C01 - INORGANIC CHEMISTRY