Patents by Inventor Dan C. Drinkwitz

Dan C. Drinkwitz 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).

  • Analytical reagent and method
    Patent number: 4307071
    Abstract: A reagent is disclosed for determining the concentration of a ligand in blood serum. The reagent includes a protenaceous, three-dimensional, serum-insoluble complex which is readily collected by centrifugation, the complex comprising non-specific immunoglobulins, anti-ligand immunoglobulins, immunoglobulins which are antibodies to the previously mentioned immunoglobulins and which are complexed therewith, and a labeled ligand complexed with the anti-ligand immunoglobulins. The reagent is particularly useful in competitive binding analyses such as radioimmunoassays.
    Type: Grant
    Filed: August 2, 1977
    Date of Patent: December 22, 1981
    Assignee: Kallestad Laboratories, Inc.
    Inventors: Dennis M. Murray, John W. Rosevear, Dan C. Drinkwitz