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:
Mar. 23, 1993
Filed:
May. 29, 1991
Applicant:
Inventors:
Keith C Backman, Bedford, MA (US);
Christiane Munkholm, Salem, MA (US);
Assignee:
OmniGene, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q / ; G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
436501 ; 435-71 ; 435-792 ; 435-793 ; 435-794 ; 435-795 ; 436518 ; 436524 ;
Abstract
An optical detection method for detecting specific ligands in an immunoassay is formed by diffracting a beam of light through slits formed in a mask and thererby forming an interference pattern. The diffracted light of one of the slits is distributed by an assay having a ligand which when reacted with anti-ligand changes the optical characteristics of the assay thereby changing the interference pattern in a concentration dependent manner.