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:
Aug. 07, 1979
Filed:
Jan. 09, 1978
Richard A Harte, Redwood City, CA (US);
Fred H Deindoerfer, Santa Clara, CA (US);
International Diagnostic Technology, Inc., Santa Clara, CA (US);
Abstract
A combined test for quantitating immunoglobulin and identifying the presence of abnormal homogeneous immunoglobulin usually of myeloma origin. In a direct test, a first fraction of serum sample is adsorbed to a solid surface and the adsorbed immunoglobulin is reacted with labeled antibody and the quantity of labeled antibody on the surface is measured. A second fraction of the serum sample is subjected to a competitive test in which normal immunoglobulin is adsorbed onto a second solid surface. Then, specific labeled antibody is competitively immunologically reacted with the immunoglobulin adsorbed on the surface and sample immunoglobulin. After washing, the labeled antibody on the second surface is measured to provide a quantitative measurement of sample immunoglobulin. Abnormal immunoglobulin is indicated if the ratio of immunoglobulin content of the sample as found by the competitive test to the quantity found by the direct test is 2:1 or greater.