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. 06, 2026
Filed:
Nov. 11, 2021
Amtek Research International Llc, Lebanon, OR (US);
Chi Thuong-Le La, Happy Valley, OR (US);
Jeff M. Frenzel, Albany, OR (US);
Don Spitz, Albany, OR (US);
Kaylee Duchateau, Lebanon, OR (US);
Richard W. Pekala, Corvallis, OR (US);
Matthew Alan Warren, Salem, OR (US);
AMTEK RESEARCH INTERNATIONAL LLC, Lebanon, OR (US);
Abstract
This disclosure relates to battery separators for use in lead acid batteries. In particular, the disclosure relates to nonporous polymer sheets in which the porosity manifests itself after cavitation and/or biaxial stretching to form a microporous membrane. The disclosure also relates to nonporous polymer sheets in which the porosity manifests itself after dissolution of an acid soluble filler to form a microporous membrane. In addition to meeting all battery performance requirements, these microporous membranes eliminate environmental and health concerns because they do not require the use of an organic solvent during their production.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile