Patents by Inventor Roland Engelhardt

Roland Engelhardt 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).

  • Method for measuring substrate concentrations
    Patent number: 4129478
    Abstract: The concentration of substrates of enzyme reactions is measured by determining the current produced at an platinum or gold electrode by oxidizing an acceptor utilizing a measuring device comprising a measuring cell, an enzyme electrode in contact with the fluid sample and containing an platinum or gold electrode, an enzyme layer and a reference electrode in contact with the fluid sample. In this manner important physiological parameters, such as the concentration of lactate and glucose in fluid biological samples, can be measured quickly and accurately.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: December 12, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Philippe Racine, Jean-Claude Higelin, Roland Engelhardt, Wolfgang Mindt
  • Apparatus for measuring substrate concentrations
    Patent number: 4005002
    Abstract: The concentration of substrates of enzyme reactions is measured by determining the current produced at a platinum or gold electrode by oxidizing an acceptor utilizing a measuring device comprising a measuring cell, an enzyme electrode in contact with the fluid sample and containing a platinum or gold electrode, an enzyme layer and a reference electrode in contact with the fluid sample. In this manner important physiological parameters, such as the concentration of lactate and glucose in biological fluids, can be measured quickly and accurately.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: January 25, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Philippe Racine, Jean-Claude Higelin, Roland Engelhardt, Wolfgang Mindt