Patents by Inventor Keith A. Dumigan

Keith A. Dumigan 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).

  • Article and method using pressurized air to provide motive power for toys
    Publication number: 20030027482
    Abstract: An article comprises a body, wherein a portion of the body is hollow. A pressurized gas is disposed within the hollow portion of the body. The hollow portion of the body has at least one opening defined therein. The opening is adapted to enable the pressurized gas to escape from the hollow portion of the body, such that the escaping gas provides energy to an associated object operatively associated with the body. The article and method of pressurizing hollow toys may provide a plurality of objects that are interchangeably and operatively associated with the body of the article.
    Type: Application
    Filed: July 17, 2002
    Publication date: February 6, 2003
    Applicant: The Step2 Company
    Inventors: Keith Dumigan, Tammy Ortner, Andrew Hauptner, Michael Feeney, John Hradisky
  • Wheel
    Patent number: D435821
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: January 2, 2001
    Assignee: Graco Children's Products Inc.
    Inventor: Keith A. Dumigan
  • Tire tread
    Patent number: D508673
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: August 23, 2005
    Assignee: Bridgestone/Firestone North American Tire, LLC
    Inventors: Keith A. Dumigan, Francis J. Byrne, Jeffrey D. Parker
  • Tire tread
    Patent number: D508674
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: August 23, 2005
    Assignee: Bridgestone/Firestone North American Tire, LLC
    Inventors: Keith A. Dumigan, Francis J. Byrne, Jeffrey D. Parker
  • Tire tread
    Patent number: D445369
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: July 24, 2001
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Keith A. Dumigan, William B. Allison
  • Tire tread
    Patent number: D512683
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: December 13, 2005
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventors: Keith A. Dumigan, James G. Guspodin, Timothy J. Lassan
  • Tire tread
    Patent number: D448328
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: September 25, 2001
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Keith A. Dumigan, Christopher T. Baker, James G. Guspodin, Elizabeth M. Beutler
  • Tire tread
    Patent number: D449571
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: October 23, 2001
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Keith A. Dumigan, William B. Allison
  • Tire tread
    Patent number: D449801
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: October 30, 2001
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Keith A. Dumigan, Christopher T. Baker, James G. Guspodin, Elizabeth M. Beutler
  • Tire tread
    Patent number: D515498
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: February 21, 2006
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventor: Keith A. Dumigan
  • Stroller
    Patent number: D452193
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: December 18, 2001
    Assignee: Graco Children's Products Inc.
    Inventors: Keith A. Dumigan, Gary R. Lemmeyer, Robert J. Warner, Jr., Mary Ann Celestina-Krevh
  • Tire tread
    Patent number: D517979
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: March 28, 2006
    Assignee: Bridgestone Firestone North America Tire, LLC
    Inventors: Keith A. Dumigan, James G. Guspodin, Timothy J. Lassan
  • Stroller
    Patent number: D452461
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: December 25, 2001
    Assignee: Graco Children's Products Inc.
    Inventors: Keith A. Dumigan, Gary R. Lemmeyer, Robert J. Warner, Jr., Mary Ann Celestina-Krevh
  • Wheel cap
    Patent number: D453914
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: February 26, 2002
    Assignee: Graco Children's Products Inc.
    Inventor: Keith A. Dumigan
  • Tire tread
    Patent number: D524720
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: July 11, 2006
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventor: Keith A. Dumigan
  • Tire tread
    Patent number: D524721
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: July 11, 2006
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventors: Keith A. Dumigan, Francis Byrne, Yasuo Himuro, John P. Rodak, David C. Spragg, Andrew Svenson, Jon I. Stuckey
  • Tire tread
    Patent number: D524722
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: July 11, 2006
    Assignee: Bridgestone/Firestone North American Tire, LLC
    Inventor: Keith A. Dumigan
  • Tire tread
    Patent number: D418455
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: January 4, 2000
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Keith A. Dumigan, Everett J. Edwards
  • Tire Tread
    Patent number: D421582
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: March 14, 2000
    Assignee: Bridgestone/Firestone Research Inc.
    Inventors: Keith A. Dumigan, Bill J. Wallet