Patents by Inventor Roger A. Janczak

Roger A. Janczak 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).

  • Two-part test cartridge for centrifuge
    Patent number: 4940527
    Abstract: A two-part test cartridge for use in a centrifugal analyzer for measuring the concentration of different electrolytes in blood or blood serum samples has one part which is disposable and which is characterized by a sample entry port, one or more filled calibrant chambers, a waste chamber and passages between various chambers; and a second, mating part which is reusable and which is characterized by an ISE, a power supply and circuitry therefor, and a series of chambers and passages adapted for communication with the series of chambers and passages in the disposable part.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: July 10, 1990
    Assignee: Abbott Laboratories
    Inventors: Vidas P. Kazlauskas, Roger A. Janczak, Benton A. Durley, III