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:
Apr. 28, 1992
Filed:
Aug. 30, 1990
Dario Frontini, Milan, IT;
Maurizio D'Alterio, Brugherio, IT;
Instrumentation Laboratory S.p.A., Milan, IT;
501 Instrumentation Laboratory S.p.A., Monza, IT;
Abstract
Spontaneous aspecific coloration in so-called Trinder reagents which can alter subsequent colorimetric determinations is inhibited by adding compounds of the chelating agent class to the solution. The resultant compositions contain a peroxidase enzyme, a phenylpyrazone derivative, a compound of phenolic or aromatic amine structure and a stabilizer. Preferred stabilizers are ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile