ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,396, issued on April 7, was assigned to Entegris Inc. (Billerica, Mass.).
"Acid resistant filter media" was invented by James Hamzik (North Billerica, Mass.), KwokShun Cheng (Nashua, N.H.), Jad A. Jaber (Westford, Mass.) and Nicholas J. Filipancic (Medford, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 t...