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David BLACKBURN
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Barrington, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and process with a vibratory angled plate and/or fixed ho...
Patent number
11,674,317
Issue date
Jun 13, 2023
United States Gypsum Company
Peter Brandon Groza
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Hydrophobic finish compositions with extended flow time retention a...
Patent number
10,399,898
Issue date
Sep 3, 2019
United States Gypsum Company
Yanfei Peng
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Mat-faced board
Patent number
10,207,475
Issue date
Feb 19, 2019
United States Gypsum Company
Michael Patrick Shake
B32 - LAYERED PRODUCTS
Information
Patent Grant
Compositions and methods for water-resistant gypsum fiber products
Patent number
9,410,058
Issue date
Aug 9, 2016
United States Gypsum Company
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Effective use of melamine sulfonate condensate dispersants in wallb...
Patent number
9,328,025
Issue date
May 3, 2016
United States Gypsum Company
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Additives in gypsum slurries and adjusting their proportions
Patent number
8,801,852
Issue date
Aug 12, 2014
United States Gypsum Company
Chris C. Lee
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Additives in gypsum panels and adjusting their proportions
Patent number
8,597,426
Issue date
Dec 3, 2013
United States Gypsum Company
Chris C. Lee
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Foamed slurry and building panel made therefrom
Patent number
8,142,915
Issue date
Mar 27, 2012
United States Gypsum Company
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Foamed slurry and building panel made therefrom
Patent number
8,088,218
Issue date
Jan 3, 2012
United States Gypsum Company
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Modifiers for gypsum slurries and method of using them
Patent number
7,932,308
Issue date
Apr 26, 2011
United States Gypsum Company
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Gypsum products utilizing a two-repeating unit dispersant and a met...
Patent number
7,776,461
Issue date
Aug 17, 2010
United States Gypsum Company
David R. Blackburn
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Gypsum products utilizing a two-repeating unit dispersant and a met...
Patent number
7,776,462
Issue date
Aug 17, 2010
United States Gypsum Company
Qingxia Liu
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Gypsum products utilizing a two-repeating unit dispersant and a met...
Patent number
7,767,019
Issue date
Aug 3, 2010
United States Gypsum Company
Qingxia Liu
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Gypsum products utilizing a two-repeating unit dispersant and a met...
Patent number
7,637,996
Issue date
Dec 29, 2009
United States Gypsum Company
David R. Blackburn
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Modifiers for gypsum slurries and method of using them
Patent number
7,608,347
Issue date
Oct 27, 2009
United States Gypsum Company
Dennis M. Lettkeman
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Modified landplaster as a wallboard filler
Patent number
7,601,214
Issue date
Oct 13, 2009
United States Gypsum Company
David R. Blackburn
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Fast drying gypsum products
Patent number
7,572,328
Issue date
Aug 11, 2009
United States Gypsum Company
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of making a gypsum slurry with modifiers and dispersants
Patent number
7,572,329
Issue date
Aug 11, 2009
United States Gypsum Company
Qingxia Liu
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Effective use of dispersants in wallboard containing foam
Patent number
7,544,242
Issue date
Jun 9, 2009
United States Gypsum Company
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
FABRIC REINFORCEMENT FOR IMPROVING CEMENT BOARD FLEXURAL STRENGTH A...
Publication number
20230228085
Publication date
Jul 20, 2023
UNITED STATES GYPSUM COMPANY
David R. Blackburn
D03 - WEAVING
Information
Patent Application
APPARATUS AND PROCESS WITH A VIBRATORY ANGLED PLATE AND/OR FIXED HO...
Publication number
20210189737
Publication date
Jun 24, 2021
United States Gypsum Company
Peter Brandon Groza
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
SYSTEM AND METHOD FOR CONTINUOUS MANUFACTURE OF JOINT COMPOUND
Publication number
20200261864
Publication date
Aug 20, 2020
United States Gypsum Company
David R. BLACKBURN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PREPARING MAT-FACED BOARD
Publication number
20170326840
Publication date
Nov 16, 2017
United States Gypsum Company
Michael Patrick Shake
B32 - LAYERED PRODUCTS
Information
Patent Application
MAT-FACED BOARD
Publication number
20170326839
Publication date
Nov 16, 2017
United States Gypsum Company
Michael Patrick Shake
B32 - LAYERED PRODUCTS
Information
Patent Application
HYDROPHOBIC FINISH COMPOSITIONS WITH EXTENDED FLOW TIME RETENTION A...
Publication number
20160264461
Publication date
Sep 15, 2016
United States Gypsum Company
Yanfei PENG
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
COMPOSITIONS AND METHODS FOR WATER-RESISTANT GYPSUM FIBER PRODUCTS
Publication number
20150291844
Publication date
Oct 15, 2015
United States Gypsum Company
David R. Blackburn
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
METHOD OF PREPARING MAT-FACED ARTICLE
Publication number
20140261954
Publication date
Sep 18, 2014
United States Gypsum Company
Ashish DUBEY
B32 - LAYERED PRODUCTS
Information
Patent Application
ADDITIVES IN GYPSUM SLURRIES AND ADJUSTING THEIR PROPORTIONS
Publication number
20140073711
Publication date
Mar 13, 2014
United States Gypsum Company
Chris C. Lee
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
EFFECTIVE USE OF MELAMINE SULFONATE CONDENSATE DISPERSANTS IN WALLB...
Publication number
20120172468
Publication date
Jul 5, 2012
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHOD OF IMPROVING GYPSUM BOARD STRENGTH
Publication number
20120167805
Publication date
Jul 5, 2012
James R. Wittbold
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
FOAMED SLURRY AND BUILDING PANEL MADE THEREFROM
Publication number
20110213043
Publication date
Sep 1, 2011
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
ADDITIVES IN GYPSUM PANELS AND ADJUSTING THEIR PROPORTIONS
Publication number
20110054053
Publication date
Mar 3, 2011
Chris C. Lee
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
GYPSUM PRODUCTS UTILIZING A TWO-REPEATING UNIT DISPERSANT AND A MET...
Publication number
20100056655
Publication date
Mar 4, 2010
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
GYPSUM PRODUCTS UTILIZING A TWO-REPEATING UNIT DISPERSANT AND A MET...
Publication number
20100011994
Publication date
Jan 21, 2010
DAVID R. BLACKBURN
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
MODIFIERS FOR GYPSUM SLURRIES AND METHOD OF USING THEM
Publication number
20090292045
Publication date
Nov 26, 2009
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Gypsum compositions with naphthalene sulfonate and modifiers
Publication number
20080148997
Publication date
Jun 26, 2008
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Gypsum products utilizing a two-repeating unit dispersant and a met...
Publication number
20080009566
Publication date
Jan 10, 2008
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Foamed slurry and building panel made therefrom
Publication number
20080000392
Publication date
Jan 3, 2008
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Modified landplaster as a wallboard filler
Publication number
20070044688
Publication date
Mar 1, 2007
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Modified landplaster as a wallboard filler
Publication number
20070044687
Publication date
Mar 1, 2007
David R. Blackburn
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method of making a gypsum slurry with modifiers and dispersants
Publication number
20060278135
Publication date
Dec 14, 2006
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Gypsum products utilizing a two-repeating unit dispersant and a met...
Publication number
20060278127
Publication date
Dec 14, 2006
United States Gypsum Company
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Effective use of dispersants in wallboard containing foam
Publication number
20060278128
Publication date
Dec 14, 2006
United States Gypsum Company
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Gypsum products utilizing a two-repeating unit dispersant and a met...
Publication number
20060278130
Publication date
Dec 14, 2006
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Modifiers for gypsum slurries and method of using them
Publication number
20060278134
Publication date
Dec 14, 2006
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Modifiers for gypsum slurries and method of using them
Publication number
20060280898
Publication date
Dec 14, 2006
United States Gypsum Company
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Effective use of dispersants in wallboard containing foam
Publication number
20060278129
Publication date
Dec 14, 2006
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Fast drying gypsum products
Publication number
20060281837
Publication date
Dec 14, 2006
United States Gypsum Company
Dennis M. Lettkeman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method of making a gypsum slurry with modifiers and dispersants
Publication number
20060280899
Publication date
Dec 14, 2006
United States Gypsum Company
Qingxia Liu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES