Patents by Inventor David Allen Griffin

David Allen Griffin 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 with sipes having tie bars
    Patent number: 7484542
    Abstract: A tire tread has at least three rows of tread elements, each tread element in the at rows has at least one sipe and at least one sipe in each tread element row has a tie bar therein. Each tie bar in the sipes has a volume, and the volume of the sipe tie bar in each tread element in each row is not more than 10% different than the volume of the sipe tie bar in each tread element in any other tread row. Several of the tread rows have transverse grooves having groove tie bars therein.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 3, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Karl Eric Sundkvist, Eddy Dong-Rong Pan, Tooney Raymond Jones, David Allen Griffin, John Russell Shaffer, Charles Kenneth Schmalix, Keith Eric Grabo
  • Grooved tire support ring
    Patent number: 6758249
    Abstract: A support ring for a tire is disclosed. The support ring is to be mounted on a tire wheel for support of the underside of the tire when the tire is operated at underinflated conditions. The outer surface of the support ring is provided with a set of grooves that permit lubrication to freely travel over the surface of the ring during use.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: July 6, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: David Allen Griffin
  • GROOVED TIRE SUPPORT RING
    Publication number: 20040108033
    Abstract: A support ring for a tire is disclosed. The support ring is to be mounted on a tire wheel for support of the underside of the tire when the tire is operated at underinflated conditions. The outer surface of the support ring is provided with a set of grooves that permit lubrication to freely travel over the surface of the ring during use.
    Type: Application
    Filed: December 6, 2002
    Publication date: June 10, 2004
    Inventor: David Allen Griffin
  • Tire tread
    Patent number: D449800
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: October 30, 2001
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Matthew Robert Eckels, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart, Jay Kevin Lawrence
  • Tire tread
    Patent number: D450635
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: November 20, 2001
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Kurt Jon Bergstrom, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart
  • Tire tread
    Patent number: D454331
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: March 12, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Kurt Jon Bergstrom, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart
  • Tire tread
    Patent number: D531572
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: November 7, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Charles Kenneth Schmalix, David Allen Griffin, Keith Eric Grabo, Karl Eric Sundkvist, Eddy Dong-Rong Pan
  • Shoulder tread for a tire
    Patent number: D575727
    Type: Grant
    Filed: February 20, 2006
    Date of Patent: August 26, 2008
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jonathan James Shondel, William Butterworth Allison, David Allen Griffin
  • Tire tread
    Patent number: D421732
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 21, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Kurt Jon Bergstrom, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart
  • Tire tread
    Patent number: D421942
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 28, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Kurt Jon Bergstrom, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart
  • Tire tread
    Patent number: D421943
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: March 28, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Kurt Jon Bergstrom, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart
  • Tire tread
    Patent number: D422246
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: April 4, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Fierro, Kurt Jon Bergstrom, Kevin Christopher Legge, David Allen Griffin, Jeffrey Leon Sevart