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.

Date of Patent:
Nov. 29, 1988

Filed:

Apr. 30, 1987
Applicant:
Inventors:

Ker-Kong Tung, Carlsbad, CA (US);

Linda K Cragle, San Diego, CA (US);

Frederick W Rood, Jr, Fallbrook, CA (US);

Shih-Yun Lee, San Marcos, CA (US);

Assignee:

Beckman Instruments, Inc., Fullerton, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-7 ; 436513 ; 436533 ; 436534 ; 436801 ; 436803 ; 436817 ; 436820 ; 436827 ;
Abstract

A method for obtaining an actual linear standard curve in a sandwich type of immunoassay where a first antibody bound to an insoluble support and a second unbound labelled antibody complex with the antigen contained in a test sample to form an insoluble antibody:antigen:labelled antibody complex which is then detected. Unbound unlabelled first antibody and/or unbound unlabelled second antibody are added to the reaction mixture to divert excess antigen away from the desired end-product complex, thus rendering the antigen of interest the rate-limiting factor in the overall immunoreaction. This results in a pseudo first-order reaction which produces an actual linear standard curve.


Find Patent Forward Citations

Tung, Ker-Kong. (1988). Method to achieve a linear standard curve in a sandwich immunoassay (U.S. Patent No. 4788138). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4788138

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

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