Microporous filter media, filtration systems containing same, and methods of making and using

  • US 6,630,016 B2
  • Filed: 11/08/2002
  • Issued: 10/07/2003
  • Est. Priority Date: 01/31/2002
  • Status: Active Grant
First Claim
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1. A filter medium comprising:

  • a microporous structure comprising an array of active particles, said microporous structure having a mean flow path of less than about microns; and

    a microbiological interception enhancing agent comprising a cationic material having a medium to high charge density and a molecular weight greater than about 5000 Daltons, adsorbed on at least a portion of said microporous structure, and a biologically active metal in direct proximity to the cationic material and also on at least a portion of said microporous structure.

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