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. 18, 1992
Filed:
Sep. 13, 1989
Peter K Chun, South San Francisco, CA (US);
Albert E Chu, Hillsborough, CA (US);
E-Y Laboratories, Inc., San Mateo, CA (US);
Abstract
A specimen containing N. lactamica, N. meningitidis, N. gonorrhoeae or B. catarrhalis is incubated simultaneously with a first substrate for beta-galactosidase and a second substrate for gamma-glutamyl aminopeptidase to form reaction products with one or the other Neisseriae which yields a detectible first or second signal distinct from each other depending upon the presence of the enzyme. Signals may comprise distinct colors which emit either in the absence or presence of diazo dye coupler. A third substrate specific for prolyliminopeptidase in N. gonorrhoeae may be added to form a detectible third signal of the same type. The third substrate may be incubated simultaneously with the first two substrates or later. The absence of all of the first three signals is a positive indication that the specimen contains B. catarrhalis. Also, a diagnostic test kit for performing the above tests with or without lectin or antibody for agglutination based upon specific recognition.