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US Patent 7645527 Gypsum-based building material

Patent 7645527 was granted and assigned to Knauf on January, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Knauf

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

76455270

Patent Inventor Names

Georg Krämer0

Hans-Ulrich Hummel0

Hans-Rudolf Stössel0

Date of Patent

January 12, 2010

Patent Application Number

105326350

Date Filed

September 13, 2004

Patent Citations Received

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US Patent 11999658 High salt gypsum wallboard containing salt absorbents and methods of making same

Patent Primary Examiner

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William P. Watkins, III

Patent abstract

A gypsum-based building material containing from 1 to 25% by weight of zeolites.

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