Method and apparatus for multistage liquid filtration
US6818130B1 · kind B1 · utility
9Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2000 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Apr 14, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a multistage liquid filtering apparatus and a multistage process for filtering microorganisms and other unwanted impurities from the liquid. The invention employs a microorganism-removing filter stage prior to an activated carbon filter stage and especially adaptable for use with home water supplies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.