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. 22, 1977
Filed:
Jul. 19, 1974
Saul I Shupack, Wayne, PA (US);
Stephen F Malin, Burlington, MA (US);
Villanova University, Villanova, PA (US);
Abstract
A method for testing biological materials, and especially those obtained from the human body, for the presence of the hepatitis associated antigen (HAA), in which Zeise's salt, or another water soluble platinum or palladium salt containing a trans directing group which enables the noble metal-containing moiety of the salt to react with the hepatitis associated antigen (HAA) or related materials, is mixed with the material to be tested in the presence of water, causing the formation of characteristic visible turbidity in the mixture which persists after agitation if HAA is present. Any slight turbidity observed initially in normal sera disappears upon agitation if the test sample is free from the hepatitis associated antigen. Also disclosed are test reagents consisting of the platinum and palladium salts in aqueous solutions containing non-interfering stabilizing salts such as sodium and potassium chloride and equivalents.