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. 16, 1993
Filed:
Aug. 30, 1984
Robert W Fritzsche, Bernardsville, NJ (US);
Kenneth J Schlager, Elm Grove, WI (US);
Orbit Medical Systems, Inc., Capistrano Beach, CA (US);
Abstract
A fluorescence decay time method and apparatus directly measuring the time decay function resulting from a plurality of fluorescing bodies, including background, and analytically determines the presence and concentration of the fluorescing bodies homogeneously and simultaneously is disclosed. The fluorescently labelled reaction product of a target ligand, such as an antigen, with a binding molecule for the ligand, such as an antibody, exhibits a fluorescent decay time curve which bears a direct straight line relationship to the concentration of the target antigen, in that the value for fluorescent intensity at time zero for the decay time curve is a measure of said concentration. The time zero intensity is proportional to the concentration of the target ligand in the unknown sample which can then be compared to the concentrations from a standard curve.