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:
May. 25, 1982
Filed:
May. 25, 1979
Dieter Berger, Viernheim, DE;
Franz Braun, Rimbach, DE;
Gunter Frey, Ludwigshafen am Rhein, DE;
Werner Guthlein, Mannheim-Neckarau, DE;
Wolfgang Werner, Mannheim-Vogelstang, DE;
Boehringer Mannheim GmbH, Mannheim, DE;
Abstract
Diagnostic agent for the detection of leukocytes in body fluids, comprising an absorbent carrier which is impregnated with a chromogen and a buffer substance, wherein the chromogen is a sulfonphthalein ester of the formula ##STR1## wherein R.sub.1 is a carboxylic acid residue optionally substituted by halogen or lower alkoxy; or is an amino acid or peptide residue having a nitrogen protective group;
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile