Patents by Inventor Martin C. Bull

Martin C. Bull 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).

  • Valve retaining device
    Patent number: 8978939
    Abstract: A retaining device (1) has a non-laminar self-closing valve (2) retained therein. The valve comprises a flange (8), and the rigidity of the flange (8) is increased by the device (1). The retaining device is a single-piece article.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: March 17, 2015
    Assignee: Obrist Closures Switzerland GmbH
    Inventors: Martin C. Bull, John Leamon
  • Bottle
    Patent number: D1027649
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: May 21, 2024
    Assignee: H.J. Heinz Company Brands LLC
    Inventors: Edith van Sprundel, Martin C. Bull, Steffi McCrudden, Jaap van Beelen, Bianca Schmitz