Microporous filter media, filtration systems containing same, and methods of making and using
US6630016B2 · kind B2 · utility
114Cited by
12References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Nov 8, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a microbiological interception enhanced filter medium comprising a microporous structure having a mean flow path of less than about 2 microns and made of an array of active particles. At least a portion of the surface of microporous structure has formed thereon a microbiological interception enhancing agent comprising a cationic material in combination with a biologically active metal. A microbiological interception enhanced filter medium of the present invention provides greater than about 4 log viral interception, and greater than about 6 log bacterial interception.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.