Patent · US Expired

Stable test strips having a water-soluble paper layer and methods for making same

US4061468A · kind A · utility

98Cited by

7References

13Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Hans Lange
Walter Rittersdorf · Mannheim, DE
Hans-Georg Rey
Wolfgang Werner · Hersbruck, DE
Peter Rieckmann

Key dates

Filing date	Jul 1, 1975
Grant date	Dec 6, 1977
Priority date	—
Expiry date	Jul 1, 1995

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/200833
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Stable test strips for the detection of components in liquids, for example blood, ketone bodies and nitrates in urine, includes two indicator layers one of which is a water-soluble paper.

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