The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Jul. 15, 2022
Applicant:
Knauf Gips KG, Iphofen, DE;
Inventors:
Mark K. Hemphill, Hawthorn Woods, IL (US);
Qinghua Li, Rolling Meadows, IL (US);
Aaron D. Johnson, Antioch, IL (US);
Assignee:
KNAUF GIPS KG, Iphofen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/14 (2006.01); B28B 19/00 (2006.01); B32B 5/18 (2006.01); C04B 14/46 (2006.01); B32B 17/06 (2006.01); B32B 29/00 (2006.01); C04B 111/00 (2006.01); C04B 111/28 (2006.01); C04B 111/34 (2006.01);
U.S. Cl.
CPC ...
C04B 28/14 (2013.01); B28B 19/0092 (2013.01); B32B 5/18 (2013.01); C04B 14/46 (2013.01); B32B 17/066 (2013.01); B32B 29/007 (2013.01); B32B 2266/053 (2016.11); B32B 2307/3065 (2013.01); B32B 2307/72 (2013.01); B32B 2315/08 (2013.01); B32B 2315/18 (2013.01); B32B 2607/00 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/28 (2013.01); C04B 2111/34 (2013.01); C04B 2201/20 (2013.01);
Abstract
A fire-resistant gypsum panel comprises: a gypsum core layer comprising set gypsum and a high temperature sag-resistant material including mineral wool in an amount between 0.2% and 3.0% by weight of gypsum.