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US Patent 11884040 Light weight gypsum board

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Qiang Yu0

Weixin D. Song0

Date of Patent

January 30, 2024

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Patent Application Number

177240250

Date Filed

April 19, 2022

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Patent Citations

US Patent 7105587 Method and composition for polymer-reinforced composite cementitious construction material

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US Patent 7892472 Method of making water-resistant gypsum-based article

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US Patent 7932193 Coated mat products, laminates and method

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US Patent 7932308 Modifiers for gypsum slurries and method of using them

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US Patent 7964034 Gypsum-containing product and method for producing same

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US Patent 8070878 Lightweight cementitious compositions and building products and methods for making same

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US Patent 8070895 Water resistant cementitious article and method for preparing same

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US Patent 8088218 Foamed slurry and building panel made therefrom

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Patent Primary Examiner

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CPC Code

0

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Y10T 428/249968

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Patent abstract

This invention provides gypsum wallboards with a unique microstructure where the walls between voids are enhanced in thickness and strength to substantially improve the strength and handling properties of the wallboards. A method of making lightweight gypsum wallboards is also provided.

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