Patents by Inventor Paul J. Rottenkolber

Paul J. Rottenkolber 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).

  • Ceramic radial turbine wheel
    Patent number: 4408959
    Abstract: A ceramic turbine wheel (1), especially such a wheel intended for an exhaust gas driven turbine of a turbocharger for motor vehicles, comprises a body portion (3), blades (2) and hub portion (4). The body portion (4), and optionally the hub portion (3) as well, are provided with hollow central cores (5, 6).
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: October 11, 1983
    Assignees: Kennecott Corporation, Volkswagenwerk Aktiengesellschaft
    Inventors: William D. Long, Paul J. Rottenkolber