Patents by Inventor Martin LIPHAM

Martin LIPHAM 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).

  • Variable thickness sipes
    Patent number: 11186054
    Abstract: The present invention includes tire treads having a sipe (18) and a void feature (22) in fluid communication with the sipe. Particular embodiments of the present invention also include methods for forming the same. In various embodiments, the sipe has a length, a height, and a thickness that is variable across the length and height of the sipe. The thickness of the sipe includes a thick portion (24) and a thin portion (26), the thick portion at least partially extending around a perimeter of the thin portion. In particular embodiments, the void feature (22) which is in fluid communication with the sipe extends primarily in a direction of the sipe length and has a width extending in the direction of the sipe thickness equal to or greater than substantially 1 millimeter.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: November 30, 2021
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Mark Collett, Francois Hottebart, Constantin Lazar, Martin Lipham
  • VARIABLE THICKNESS SIPES
    Publication number: 20180281328
    Abstract: The present invention includes tire treads having a sipe (18) and a void feature (22) in fluid communication with the sipe. Particular embodiments of the present invention also include methods for forming the same. In various embodiments, the sipe has a length, a height, and a thickness that is variable across the length and height of the sipe. The thickness of the sipe includes a thick portion (24) and a thin portion (26), the thick portion at least partially extending around a perimeter of the thin portion. In particular embodiments, the void feature (22) which is in fluid communication with the sipe extends primarily in a direction of the sipe length and has a width extending in the direction of the sipe thickness equal to or greater than substantially 1 millimeter.
    Type: Application
    Filed: September 30, 2016
    Publication date: October 4, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Mark COLLETT, Francois HOTTEBART, Constantin LAZAR, Martin LIPHAM