Patent · US Expired

Method for washing clothes

US6287347A · kind A · utility

4Cited by

4References

6Claims

0Family size

Assignee

Henkel Ecolab GmbH & Co. OHG · DE

Inventors

Ralf Krack · Saint Paul, US
Alfred Laufenberg · Dormagen, DE
Joerg Brockhaus · Duisburg, DE
Christine Schnepf · Neuss, DE
Thomas Merz · Hilden, DE
Dietmar Rossner · Hilden, DE

Key dates

Filing date	Oct 18, 1999
Grant date	Sep 11, 2001
Priority date	—
Expiry date	Oct 18, 2019

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06F39/20
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A method of washing textiles in an institutional washing machine wherein soil-containing wastewater is regenerated through a nanofiltration membrane and recycled to the washing process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.