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:
Feb. 27, 1996
Filed:
Dec. 09, 1993
Applicant:
Inventors:
David W Gerdt, Charlottesville, VA (US);
John C Herr, Charlottesville, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ; G01N / ;
U.S. Cl.
CPC ...
435-6 ; 435-71 ; 435-74 ; 435-78 ; 435-79 ; 436501 ; 436518 ; 436527 ; 436546 ; 422 8206 ; 422 8211 ; 385 13 ; 385 30 ; 356448 ;
Abstract
A coupled pair of fiber optic fibers are used an immunoassay device. The fibers are first coupled and then drawn down to a single mode diameter. The coupler senses output ratio change due to chemical, biochemical, bioaffinity, immunogenic-type interactions and other molecular activity occuring within the evanescent field. The fusion joint of the coupler is coated with a first immunoassay component, and then surrounded with a second immunoassay component.