Uninterrupted Equatorial Circumferential Groove Patents (Class D12/547)
Zigzag type (Class D12/548)
Straight sides (Class D12/549)
  • Tire tread
    Patent number: D449815
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: October 30, 2001
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventor: William B. Allison
  • Tire tread
    Patent number: D451068
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: November 27, 2001
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard Heinen, Pascale de Briey-Terlinden
  • Tire tread
    Patent number: D574765
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: August 12, 2008
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventor: Scott H. Smith
  • Tread portion of an automobile tire
    Patent number: D584220
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: January 6, 2009
    Assignee: Bridgestone Corporation
    Inventor: Shungo Fujita
  • Tire
    Patent number: D586728
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: February 17, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard Heinen, William Urbano Villamizar, Frederic Michel-Jean Pons, Olivier Francis Bindner
  • Tire
    Patent number: D589431
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: March 31, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Sebastien Willy Fontaine, Anne-France Gabrielle Jeanne-Marie Cambron, Bruno Pierre Maitre, Michel Jean Yves Windeshausen, Frank Pierre Severens
  • Tire
    Patent number: D641305
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: July 12, 2011
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Pascale de Briey-Terlinden
  • Tire tread
    Patent number: D739809
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 29, 2015
    Assignees: MICHELIN RECHERCHE et TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Kevin Ray Reim, John Anthony Hutz
  • Tire tread
    Patent number: D739810
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 29, 2015
    Assignees: MICHELIN RECHERCHE et TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Kevin Ray Reim, John Anthony Hutz
  • Tire
    Patent number: D867267
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: November 19, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Veronique Marie-Jose Herbeuval, Pascale de Briey-Terlinden, Pierre Joseph Trine, Armand Rene Gabriel Leconte, Michel Mottard
  • Tire
    Patent number: D931784
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: September 28, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Virgile Ayglon, Jenifer Jones