Patents by Inventor Carl J. Zipfel

Carl J. Zipfel 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: D605977
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: December 15, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Carl J. Zipfel, Steve S. Kim, David G. Rojas
  • Patent number: D657718
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 17, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J Zipfel, Michael J Gillam, Matt McNerney
  • Patent number: D780067
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: February 28, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D797632
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: September 19, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D803731
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: November 28, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D805014
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 12, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D809442
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 6, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D811958
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: March 6, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D812526
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie
  • Patent number: D813109
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: March 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Carl J. Zipfel, David Gillespie