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Mark K. Hemphill
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Monroe, NY, US
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Patents Grants
last 30 patents
Information
Patent Grant
High salt gypsum wallboard containing salt absorbents and methods o...
Patent number
11,999,658
Issue date
Jun 4, 2024
United States Gypsum Company
Qinghua Li
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Method of preparing gypsum wallboard from high salt gypsum, and rel...
Patent number
11,993,054
Issue date
May 28, 2024
United States Gypsum Company
Qinghua Li
B32 - LAYERED PRODUCTS
Information
Patent Grant
Gypsum board containing high absorption paper and related methods
Patent number
11,891,336
Issue date
Feb 6, 2024
United States Gypsum Company
Qinghua Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Accelerator comprising starch, and related board, slurries, and met...
Patent number
11,834,374
Issue date
Dec 5, 2023
United States Gypsum Company
Yijun Sang
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Fire resistant gypsum board and related methods
Patent number
11,834,375
Issue date
Dec 5, 2023
United States Gypsum Company
Qinghua Li
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Flour binder for gypsum board, and related methods, product, and sl...
Patent number
11,787,739
Issue date
Oct 17, 2023
United States Gypsum Company
Yijun Sang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Methods of removing chloride from gypsum having high level of chlor...
Patent number
11,760,689
Issue date
Sep 19, 2023
KNAUF GIPS KG
Qinghua Li
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Gypsum wallboard with enhanced fire resistance, and related coating...
Patent number
11,702,373
Issue date
Jul 18, 2023
United States Gypsum Company
Qinghua Li
E04 - BUILDING
Information
Patent Grant
Gypsum board from gypsum having high level of chloride salt and a s...
Patent number
11,186,067
Issue date
Nov 30, 2021
United States Gypsum Company
Qinghua Li
B32 - LAYERED PRODUCTS
Information
Patent Grant
Gypsum board from gypsum having high level of chloride salt and a p...
Patent number
11,186,066
Issue date
Nov 30, 2021
United States Gypsum Company
Mark Hemphill
B32 - LAYERED PRODUCTS
Information
Patent Grant
Composite gypsum board and related methods
Patent number
11,046,053
Issue date
Jun 29, 2021
United States Gypsum Company
Mark Hemphill
B32 - LAYERED PRODUCTS
Information
Patent Grant
Methods for making high sound transmission class gypsum boards and...
Patent number
11,002,010
Issue date
May 11, 2021
United States Gypsum Company
Suman Sinha Ray
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Slurry mixer outlet
Patent number
6,874,930
Issue date
Apr 5, 2005
United States Gypsum Company
James R. Wittbold
B28 - WORKING CEMENT, CLAY, OR STONE
Patents Applications
last 30 patents
Information
Patent Application
COATED GYPSUM SET STABILIZING PARTICLES HAVING A HYDROPHOBIC GYPSUM...
Publication number
20240182363
Publication date
Jun 6, 2024
United States Gypsum Company
Mark K. Hemphill
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
METHOD AND APPARATUS FOR MAKING A GYPSUM BOARD
Publication number
20240033972
Publication date
Feb 1, 2024
United States Gypsum Company
Sooraj Kumar AMBADI OMANAKUTTAN NAIR
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
GYPSUM SLURRY MIXER PROCESS FOR ENHANCED WALLBOARD STRENGTH
Publication number
20230406781
Publication date
Dec 21, 2023
United States Gypsum Company
Annamaria VILINSKA
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
GYPSUM SET ACCELERATOR
Publication number
20230339811
Publication date
Oct 26, 2023
United States Gypsum Company
Naser Aldabaibeh
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
GYPSUM PANEL CONTAINING AMMONIUM-EXCHANGED VERMICULITE AND METHODS
Publication number
20230250019
Publication date
Aug 10, 2023
United States Gypsum Company
Qinghua Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
HIGH SALT GYPSUM WALLBOARD CONTAINING SALT ABSORBENTS AND METHODS O...
Publication number
20230150879
Publication date
May 18, 2023
United States Gypsum Company
Qinghua LI
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
HIGH TEMPERATURE SAG RESISTANT GYPSUM PANEL
Publication number
20230045576
Publication date
Feb 9, 2023
KNAUF GIPS KG
Mark K. HEMPHILL
B32 - LAYERED PRODUCTS
Information
Patent Application
BOARD WITH FIBER-REINFORCED DENSE LAYER
Publication number
20230021340
Publication date
Jan 26, 2023
United States Gypsum Company
Annamaria VILINSKA
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Application
COMPOSITIONS AND METHODS FOR MAKING PAPER USING UNCOOKED STARCH FOR...
Publication number
20230002974
Publication date
Jan 5, 2023
KNAUF GIPS KG
Mark K. HEMPHILL
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HIGH TEMPERATURE SAG RESISTANT LIGHTWEIGHT GYPSUM BOARD
Publication number
20220356114
Publication date
Nov 10, 2022
Mark Hemphill
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHODS OF REMOVING CHLORIDE FROM GYPSUM HAVING HIGH LEVEL OF CHLOR...
Publication number
20220324756
Publication date
Oct 13, 2022
KNAUF GIPS KG
Qinghua Li
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
OPEN-CELLED GYPSUM CORE, GYPSUM ACOUSTIC PANEL, AND METHOD FOR MAKI...
Publication number
20220220039
Publication date
Jul 14, 2022
KNAUF GIPS KG
Yijun SANG
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
FIRE RESISTANT GYPSUM BOARD AND RELATED METHODS
Publication number
20210238096
Publication date
Aug 5, 2021
United States Gypsum Company
Qinghua LI
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
COMPOSITE GYPSUM BOARD FORMED FROM HIGH-SALT STUCCO AND RELATED MET...
Publication number
20210198148
Publication date
Jul 1, 2021
United States Gypsum Company
Qinghua Li
B32 - LAYERED PRODUCTS
Information
Patent Application
FLOUR BINDER FOR GYPSUM BOARD, AND RELATED METHODS, PRODUCT, AND SL...
Publication number
20210155543
Publication date
May 27, 2021
United States Gypsum Company
Yijun SANG
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
GYPSUM BOARD CONTAINING HIGH ABSORPTION PAPER AND RELATED METHODS
Publication number
20210155545
Publication date
May 27, 2021
United States Gypsum Company
Qinghua Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
METHOD OF PREPARING GYPSUM WALLBOARD FROM HIGH SALT GYPSUM, AND REL...
Publication number
20210129490
Publication date
May 6, 2021
United States Gypsum Company
Qinghua Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
GYPSUM WALLBOARD WITH ENHANCED FIRE RESISTANCE, AND RELATED COATING...
Publication number
20200392050
Publication date
Dec 17, 2020
United States Gypsum Company
Qinghua Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
COMPOSITE GYPSUM BOARD AND RELATED METHODS
Publication number
20200262180
Publication date
Aug 20, 2020
United States Gypsum Company
Mark Hemphill
E04 - BUILDING
Information
Patent Application
GYPSUM BOARD FROM GYPSUM HAVING HIGH LEVEL OF CHLORIDE SALT AND A S...
Publication number
20200055278
Publication date
Feb 20, 2020
United States Gypsum Company
Qinghua LI
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
GYPSUM BOARD FROM GYPSUM HAVING HIGH LEVEL OF CHLORIDE SALT AND A P...
Publication number
20200055277
Publication date
Feb 20, 2020
United States Gypsum Company
Mark HEMPHILL
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
SILOXANE POLYMERIZATION IN GYPSUM WALLBOARD
Publication number
20200024191
Publication date
Jan 23, 2020
United States Gypsum Company
Qinghua LI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHODS FOR MAKING HIGH SOUND TRANSMISSION CLASS GYPSUM BOARDS AND...
Publication number
20190338516
Publication date
Nov 7, 2019
United States Gypsum Company
Suman Sinha Ray
B32 - LAYERED PRODUCTS
Information
Patent Application
ACCELERATOR COMPRISING STARCH, AND RELATED BOARD, SLURRIES, AND MET...
Publication number
20190322584
Publication date
Oct 24, 2019
United States Gypsum Company
Yijun SANG
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
MIGRATING STARCH WITH HIGH COLD-WATER SOLUBILITY FOR USE IN PREPARI...
Publication number
20190092689
Publication date
Mar 28, 2019
United States Gypsum Company
Yijun SANG
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Slurry mixer outlet
Publication number
20030117891
Publication date
Jun 26, 2003
United States Gypsum Company
James R. Wittbold
B28 - WORKING CEMENT, CLAY, OR STONE