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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6730493 B1

PDFFull Text
Date of Patent:
May. 04, 2004

Filed:

May. 30, 2000

Method for determining the state of substances containing keratin and suitable devices and means therefor

Applicant:
Inventors:

Annette Schwan-Jonczyk, Darmstadt, DE;

Lutz Haalck, Muenster, DE;

Ceylan Uensal, Meerbusch, DE;

Rainer Feldbruegge, Muenster, DE;

Assignee:

Wella Aktiengesellschaft, Darmstadt, DE;

Attorney:

Michael J. Striker

Primary Examiner:

Ralph Gitomer

Assistant Examiner:

Mahreen Chaudhry

Int. Cl.
CPC ...
C12Q 1/37 ; C12Q 1/34 ; C12Q 1/00 ; G01N 2/100 ; G01N 2/175 ;
U.S. Cl.
CPC ...
C12Q 1/37 ; C12Q 1/34 ; C12Q 1/00 ; G01N 2/100 ; G01N 2/175 ;
Abstract

The method for recognizing damage and determining the extent of the damage to a keratin-containing material, such as hair or wool, includes subjecting a sample of it in aqueous solution to an enzymatic and/or chemical treatment for proteolytic or hydrolytic degradation of the sample, and subsequently measuring the turbidity of the resulting liquid sample to determine the extent of the damage, either by visual observation with the naked eye or by physical measurement methods. An apparatus suitable for performing the method and enzymes, such as proteases and proteinases, and chemical agents for carrying out the method are also described.

Find Patent Forward Citations

Schwan-Jonczyk, Annette. (2004). Method for determining the state of substances containing keratin and suitable devices and means therefor (U.S. Patent No. 6730493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6730493

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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