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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.:

US 12562434 B1

PDFFull Text
Date of Patent:
Feb. 24, 2026

Filed:

Jun. 18, 2020

Lightweight nonwoven fiber mats

Applicant:

Unifrax I Llc, Tonawanda, NY (US);

Inventors:

Kevin E. Siters, Cheektowaga, NY (US);

Kenneth B. Miller, Lockport, NY (US);

Daniel Brandel, Lancaster, NY (US);

Mark D. Stahlman, Niagara Falls, NY (US);

Mauricio Munhoz De Souza, Amherst, NY (US);

Bruce K. Zoitos, Williamsville, NY (US);

Adam Kelsall, Williamsville, NY (US);

Chad D. Cannan, Spring, TX (US);

Assignee:

UNIFRAX I LLC, Tonawanda, NY (US);

Attorney:

Haynes and Boone, LLP

Primary Examiner:

Adam J Francis

Int. Cl.
CPC ...
H01M 50/44 (2021.01); H01M 10/052 (2010.01); H01M 50/403 (2021.01); H01M 50/42 (2021.01); H01M 50/429 (2021.01); H01M 50/437 (2021.01);
U.S. Cl.
CPC ...
H01M 50/44 (2021.01); H01M 10/052 (2013.01); H01M 50/403 (2021.01); H01M 50/42 (2021.01); H01M 50/4295 (2021.01); H01M 50/437 (2021.01);
Abstract

Nonwoven fiber mats include primarily B-glass fibers, and have a thickness of about 10 to about 700 microns and a basis weight of about 1 to 70 g/m. The mats are generally thermally stable at temperatures of up to 650° C., and are suitable for use as battery separators.

Find Patent Forward Citations

Siters, Kevin. (2026). Lightweight nonwoven fiber mats (U.S. Patent No. 12562434). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12562434

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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