Patents by Inventor Ingeborg Gutmann

Ingeborg Gutmann 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 urease composition
    Patent number: 4188465
    Abstract: Stabilized urease compositions are provided comprising urease and, as a stabilizing agent, a mixture of glutathione, ethylenediamine-tetraacetic acid, and citrate, preferably in a weight ratio of 1:0.5-5:0.5-3:0.5-3.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: February 12, 1980
    Assignee: Boehringer Mannheim GmbH
    Inventors: Walter Schneider, Albert Roder, Hans Mollering, Ingeborg Gutmann
  • Stabilizing agent for enzymes
    Patent number: 4118279
    Abstract: Enzyme preparations, particularly enzyme preparations containing organic sulfhydryl compounds for activation, are stabilized by means of a stabilizing agent comprising oxypolygelatine, especially oxypolygelatine having an average molecular weight of from 10,000 to 50,000.
    Type: Grant
    Filed: October 18, 1977
    Date of Patent: October 3, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Helmut Determann, Erich Bernt, Werner Dollacker, Ingeborg Gutmann, deceased, by Gudrun Engelhardt, administrator
  • Process and reagent for the rapid quantitative determination of lactate or alanine
    Patent number: 4080263
    Abstract: L-lactate is quantitatively determined by the reaction thereof with nicotinamide-adenine-dinucleotide (NAD) in the presence of lactate dehydrogenase (LDH) with the formation of reduced NAD (NADH) and pyruvate, reaction of the latter with glutamate in the presence of glutamate-pyruvate-transaminase (GPT) with the formation of alanine and .alpha.-ketoglutarate in alkaline buffered solution and measurement of the NADH formed, wherein the reaction is carried out in the presence of at least 0.4 mol/liter of carbonate or bicarbonate.
    Type: Grant
    Filed: August 11, 1976
    Date of Patent: March 21, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Erich Bernt, Peter Scheibe, Ingeborg Gutmann