Patents by Inventor Robert M. Friedenberg

Robert M. Friedenberg 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).

  • Glucose level test apparatus
    Patent number: 4105522
    Abstract: Method, apparatus and test compositions are provided for rapid, accurate test of concentration levels of various components of body fluids, particularly the glucose level in saliva, by oxidizing the test sample under controlled conditions with an excess of oxidizing agent and measuring the level of the component such as glucose in the body fluid as redox potential in millivolts of a primary cell in which the residual oxidizing solution is the electrolyte.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: August 8, 1978
    Inventors: Robert M. Friedenberg, John L. Yoscak, Stephen E. Noren
  • Glucose level test method
    Patent number: 3947328
    Abstract: Method, apparatus and test compositions are provided for rapid, accurate test of concentration levels of various components of body fluids, particularly the glucose level in saliva, by oxidizing the test sample under controlled conditions with an excess of oxidizing agent and measuring the level of the component such as glucose in the body fluid as redox potential in millivolts of a primary cell in which the residual oxidizing solution is the electrolyte.
    Type: Grant
    Filed: June 15, 1973
    Date of Patent: March 30, 1976
    Inventors: Robert M. Friedenberg, John L. Yoscak, Stephen E. Noren