Patents by Inventor Daniel S. Mathews

Daniel S. Mathews 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 having ribs, circumferential grooves and sipe pairs
    Patent number: 8820373
    Abstract: Tire having a tread pattern with superior performance characteristics. The tread pattern includes ribs and circumferential grooves which are at least one of tapered and/or generally V-shaped. The walls of each circumferential groove have a wavy and/or sinusoidal contour extending in a generally circumferential direction.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: September 2, 2014
    Assignee: Continental Reifen Deutschland GmbH
    Inventor: Daniel S. Mathews