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:
Apr. 30, 1996
Filed:
Mar. 30, 1995
Gary M Johnson, Elkhart, IN (US);
Robert J Schaeper, South Bend, IN (US);
Bayer Corporation, Elkhart, IN (US);
Abstract
A test device for determining the presence of leukocyte cells, esterase or protease in a test sample is disclosed. The test device comprises a carrier matrix having a reagent composition incorporated therein, wherein the reagent composition comprises a lactate ester having the structure ##STR1## wherein A is an alcohol blocking group, and wherein B--O-- is a residue of compound B--OH and provides a detectable response when the lactate ester is hydrolyzed; and a buffer. In a preferred embodiment, the lactate ester has the structure ##STR2## wherein X is O, S or NR.sup.2, R is aryl or lower alkyl, R.sup.1 is hydrogen or lower alkyl, and R.sup.2 is hydrogen, lower alkyl or aryl.