Patents by Inventor Otto Geffert

Otto Geffert 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).

  • Patent number: D465498
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 12, 2002
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Otto Geffert
  • Patent number: D466131
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 26, 2002
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Otto Geffert
  • Patent number: D298985
    Type: Grant
    Filed: August 21, 1985
    Date of Patent: December 20, 1988
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Otto Geffert, Roland Sternmann
  • Patent number: D356757
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: March 28, 1995
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Harm M. Lagaay, Grant Larson, Stefan Stark, Otto Geffert, Peter Mueller
  • Patent number: D356772
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: March 28, 1995
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Harm M. Lagaay, Grant Larson, Stefan Stark, Otto Geffert, Peter Mueller
  • Patent number: D363561
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: October 24, 1995
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Harm M. Lagaay, Grant Larson, Stefan Stark, Otto Geffert, Peter Mueller
  • Patent number: D392606
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 24, 1998
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Matthias Kulla, Otto Geffert
  • Patent number: D413561
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 7, 1999
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Matthias Kulla, Otto Geffert
  • Patent number: D420314
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: February 8, 2000
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Matthias Kulla, Otto Geffert