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:
Jun. 12, 1984
Filed:
Dec. 17, 1981
Chia-Gee Wang, Millwood, NY (US);
Wang Associates, Millwood, NY (US);
Abstract
An immunoassay method for measurement of the content of a target antigen or antibody in a fluid or tissue specimen comprises reacting the target with reagent antibody or antigen which forms a complex with the target and is carried by small tagged mobile units having tagging elements or compounds which are unassociated chemically with said reagent and are protected against reaction with the target and the biological and chemical environment of the assay. The tagged mobile units bearing formed complexes are measured by spectroscopic detection. Preferably the small, tagged mobile units, such as latex particles, are of a size smaller than 0.8 .mu.m. The tagged complexes which are formed may be measured by spectrophotometric detection or by mass spectrometry. Different target antigens or antibodies can be assayed simultaneously by employing different tagged mobile units, and the mobile units with the tagging elements can be recovered for disposal or for reuse.