Patents by Inventor Philippe Jamain

Philippe Jamain 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).

  • Pneumatic tire tread
    Patent number: 4222423
    Abstract: Pneumatic tire comprising a tread having rows of elements in relief presenting ridges of substantially transverse orientation with a broken line trace and incisions is improved due to the fact that at least most of the segments of the substantially transverse ridges have an inclination which increases progressively, with respect to the transverse direction, from the center line of the tread towards each of the edges thereof.
    Type: Grant
    Filed: December 8, 1978
    Date of Patent: September 16, 1980
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Philippe Jamain
  • Tire
    Patent number: D247107
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: January 31, 1978
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Philippe Jamain
  • Tire
    Patent number: D247109
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: January 31, 1978
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Philippe Jamain
  • Tire
    Patent number: D248227
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: June 20, 1978
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Philippe Jamain
  • Tire
    Patent number: D250463
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: December 5, 1978
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Philippe Jamain