Patents by Inventor Hugo Tiedmann

Hugo Tiedmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stabilized diagnostic agent
    Patent number: 4220713
    Abstract: The invention provides a diagnostic agent for the detection of (a) hydroperoxides or of substances which react with the liberation of hydroperoxides or of (b) peroxidase or of peroxidatively-active substances, comprising a stabilized oxidation indicator and, in case (a), peroxidase or a peroxidatively active substance or, in case (b), hydroperoxide or a substance which reacts with the liberation of hydroperoxides; wherein the stabilizer is a 1-arylsemicarbazide of the formulaAr--NH--NH--CO--NH.sub.2in which Ar is aryl or aryl substituted with alkyl, alkoxy or halogen.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: September 2, 1980
    Assignee: Boehringer Mannheim GmbH
    Inventors: Walter Rittersdorf, Hugo Tiedmann, Wolfgang Werner, Hans Wielinger