Patents by Inventor Dennis W. Krupa

Dennis W. Krupa 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).

  • Tire
    Patent number: D272614
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: February 14, 1984
    Assignee: The B. F. Goodrich Company
    Inventor: Dennis W. Krupa
  • Tire tread
    Patent number: D555574
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: November 20, 2007
    Assignee: Hankook Tire Mfg. Co. Ltd.
    Inventors: Dennis W. Krupa, Dean E. Rogers
  • Tire tread
    Patent number: D556120
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: November 27, 2007
    Assignee: Hankook Tire Mfg. Co. Ltd
    Inventors: Dennis W. Krupa, Dean E. Rogers
  • Tire tread
    Patent number: D557199
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: December 11, 2007
    Assignee: Hankook Tire Mfg. Co. Ltd
    Inventors: Dennis W. Krupa, Dean E. Rogers
  • Tire
    Patent number: D296680
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: July 12, 1988
    Assignee: The Uniroyal Goodrich Tire Company
    Inventor: Dennis W. Krupa
  • Tire
    Patent number: D296681
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: July 12, 1988
    Assignee: The Uniroyal Goodrich Tire Company
    Inventors: Dennis W. Krupa, Richard J. Skerl
  • Tire
    Patent number: D296683
    Type: Grant
    Filed: December 24, 1985
    Date of Patent: July 12, 1988
    Assignee: The Uniroyal Goodrich Tire Company
    Inventor: Dennis W. Krupa
  • Tire
    Patent number: D296684
    Type: Grant
    Filed: December 24, 1985
    Date of Patent: July 12, 1988
    Assignee: The Uniroyal Goodrich Tire Company
    Inventor: Dennis W. Krupa
  • Tire
    Patent number: D308844
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: June 26, 1990
    Assignee: The Uniroyal Goodrich Tire Company
    Inventors: Dennis W. Krupa, Curt D. Croley
  • Tire tread
    Patent number: D362211
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: September 12, 1995
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Timothy J. Lassan, Bill J. Wallet, Dennis W. Krupa, Fred J. Cusimano, Christopher Kocaj
  • Tire tread
    Patent number: D364594
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: November 28, 1995
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Dennis W. Krupa, James G. Guspodin, Roger W. Marble
  • Tire tread
    Patent number: D366018
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: January 9, 1996
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Dennis W. Krupa, Bill J. Wallet, Joseph F. Molnar
  • Tire tread
    Patent number: D661642
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: June 12, 2012
    Assignee: Hankook Tire Co. Ltd.
    Inventors: Dennis W Krupa, Dean E Rogers
  • Tire tread
    Patent number: D413556
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: September 7, 1999
    Assignee: Hankook Tire Mfg., Co., Ltd
    Inventors: Dennis W. Krupa, Patrick M. Keating