Patents by Inventor Leonard F. Blankenship

Leonard F. Blankenship 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 tread
    Patent number: D455395
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: April 9, 2002
    Assignee: Bridgestone/Firestone North American Tire, LLC
    Inventors: Leonard F. Blankenship, James G. Guspodin
  • Tire tread
    Patent number: D384617
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: October 7, 1997
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: John J. Regallis, William C. Hanlon, Leonard F. Blankenship
  • Tire tread
    Patent number: D387713
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: December 16, 1997
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Timothy J. Lassan, Leonard F. Blankenship, Michel Beauvais
  • Tire tread
    Patent number: D390516
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: February 10, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Timothy J. Lassan, Leonard F. Blankenship, John J. Regallis
  • Tire tread
    Patent number: D390559
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: February 10, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: James G. Guspodin, John J. Regallis, Leonard F. Blankenship
  • Tire tread
    Patent number: D390819
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: February 17, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, Bradley J. Wurst
  • Tire tread
    Patent number: D395264
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: June 16, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, Elizabeth M. Beutler, Yasuo Himuro
  • Tire tread
    Patent number: D400130
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: October 27, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, James G. Guspodin, Joseph N. Neff
  • Tire tread
    Patent number: D400135
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: October 27, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, James G. Guspodin, Joseph N. Neff
  • Tire tread
    Patent number: D400138
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: October 27, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventor: Leonard F. Blankenship
  • Tire tread
    Patent number: D400831
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: November 10, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, James G. Guspodin, Bradley J. Wurst
  • Tire tread
    Patent number: D400834
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: November 10, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, John J. Regallis
  • Tire tread
    Patent number: D403631
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: January 5, 1999
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, John J. Regallis, David M. Reep
  • Tire tread
    Patent number: D411819
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: July 6, 1999
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Leonard F. Blankenship, John J. Regallis, Michel Beauvais
  • Tire tread
    Patent number: D415454
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: October 19, 1999
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Leonard F. Blankenship, James G. Guspodin
  • Tire tread
    Patent number: D416523
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: November 16, 1999
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: James G. Guspodin, Leonard F. Blankenship, Thomas J. Walton
  • Tire tread
    Patent number: D419928
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: February 1, 2000
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventor: Leonard F. Blankenship
  • Tire tread
    Patent number: D420627
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: February 15, 2000
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Everett J. Edwards, Leonard F. Blankenship, David M. Reep
  • Tire tread
    Patent number: D430081
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: August 29, 2000
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: Leonard F. Blankenship, John J. Regallis, David M. Reep
  • Tire tread
    Patent number: D430082
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: August 29, 2000
    Assignee: Bridgestone/Firestone Reseach, Inc.
    Inventors: Leonard F. Blankenship, James G. Guspodin