Patents by Inventor Mary Ann Powell

Mary Ann Powell 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).

  • Air springs and vulcanizable compositions for preparing the same
    Patent number: 8461241
    Abstract: An air spring having an airsleeve, wherein at least one layer of said airsleeve includes the vulcanization product of a vulcanizable composition including an elastomer and a non-ionic surfactant.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: June 11, 2013
    Assignee: Firestone Building Products Co., LLC
    Inventors: Sheel P. Agarwal, Mary Ann Powell
  • AIR SPRINGS AND VULCANIZABLE COMPOSITIONS FOR PREPARING THE SAME
    Publication number: 20100117274
    Abstract: An air spring having an airsleeve, wherein at least one layer of said airsleeve includes the vulcanization product of a vulcanizable composition including an elastomer and a non-ionic surfactant.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 13, 2010
    Inventors: Sheel P. Agarwal, Allen Powell, Mary Ann Powell