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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 12595396 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

Jun. 23, 2021

Acid resistant filter media

Applicant:

Entegris, Inc., Billerica, MA (US);

Inventors:

James Hamzik, North Billerica, MA (US);

Kwokshun Cheng, Nashua, NH (US);

Jad A. Jaber, Westford, MA (US);

Nicholas J. Filipancic, Medford, MA (US);

Assignee:

Entegris, Inc., Billerica, MA (US);

Attorney:
Primary Examiner:

Benjamin L Lebron

Assistant Examiner:

Eric J Mccullough

Int. Cl.
CPC ...
C09D 177/02 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); B01D 71/40 (2006.01); B01D 71/56 (2006.01);
U.S. Cl.
CPC ...
C09D 177/02 (2013.01); B01D 67/00931 (2022.08); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 69/1251 (2022.08); B01D 71/401 (2022.08); B01D 71/56 (2013.01); B01D 2239/0478 (2013.01); B01D 2325/36 (2013.01);
Abstract

Provided are certain membranes useful in the filtration of liquids and removal of various contaminants therein. In certain aspects the membranes have as one component a polyamide such as Nylon 11 and/or Nylon 12. Also provided is methodology for manufacturing such membranes and their use in filtration and purification of liquids. Membranes of the disclosure thus prepared exhibit superior acid stability when compared to polyamide membranes prepared from Nylon 6 or Nylon 6,6.

Find Patent Forward Citations

Hamzik, James. (2026). Acid resistant filter media (U.S. Patent No. 12595396). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12595396

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

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