Patent · US Expired

Method for preventing the formation of biological films

US6998049B1 · kind B1 · utility

3Cited by

15References

12Claims

0Family size

Assignee

Henkel Ecolab GmbH & Co. OHG · DE

Inventors

Bernhard Meyer · Mettmann, DE
Ralf Krack · Saint Paul, US
Alfred Laufenberg · Dormagen, DE

Key dates

Filing date	Jul 27, 2000
Grant date	Feb 14, 2006
Priority date	—
Expiry date	Jun 28, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2321/167
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for improving the performance of filtration devices by adding P- and/or N-containing compounds to the medium to be filtered.

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