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.:
Date of Patent:
Jul. 08, 2003
Filed:
Jun. 13, 2001
Applicant:
Inventors:
Sylvie Dufresne, Charlesbourg, CA;
Robert Boulay, Laval, CA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C 9/00 ;
U.S. Cl.
CPC ...
A61C 9/00 ;
Abstract
The invention relates to a method of monitoring a sterilization process having an oxidation-type sterilant, said process comprising the steps of: providing an indicator compound capable of exhibiting a color change upon exposure to the sterilant, the indicator compound being free of heterocyclic nitrogen, diazo nitrogen and amino nitrogen, and selected from the group consisting of anthraquinone dyes, triarylmethane dyes and xanthene dyes; exposing the indicator compound to the sterilization process; and observing the compound for a change of colour. The invention also relates to an indicator for an ozone sterilization process. A preferred indicator compound is rosolic acid.