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:
Nov. 08, 1994
Filed:
Sep. 12, 1988
Applicant:
Inventors:
Richard A Blumenthal, Charlestown, MA (US);
Hon-Peng P Lau, Hockessin, DE (US);
Esther K Yang, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C12Q / ;
U.S. Cl.
CPC ...
435-79 ; 435 18 ; 435 19 ; 435183 ; 435195 ; 435196 ; 436-8 ;
Abstract
Hydroxy coumarin ester enzyme substrates can be stored in a strong base at pH above 11 to stabilize the substrate against premature hydrolysis of the ester bond and to reduce the revel of contaminating hydroxy coumarin. When diluted in buffer at pH below 11 shortly before use in an enzyme assay, the substrate solution provides low background fluorescence.
Blumenthal, Richard. (1994). Stabilization and reduction of background fluorescence of hydroxy (U.S. Patent No. 5362627). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5362627
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile