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. 21, 1995
Filed:
Dec. 13, 1991
Applicant:
Inventors:
Josefina T Baker, Cupertino, CA (US);
Peter U Ly, San Jose, CA (US);
Eli Z Olivet, Sunnyvale, CA (US);
Assignee:
Smithkline Diagnostics, Inc., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436 66 ; 422 56 ;
Abstract
Improved fecal occult blood test having a matrix such as paper printed or impregnated with guaiac. The improvement comprises increasing the sensitivity while maintaining or improving the specificity of the test by employing an alcoholic-peroxide developing solution which contains an enhancing agent. The enhancers comprise phenolic type compounds such as esters of parahydroxybenzoic acids.