Patents by Inventor Martin Schledorn

Martin Schledorn 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).

  • Carrier bag
    Patent number: 5048976
    Abstract: A carrier bag or similar bag-like pack made from a plastic film or a similar material, with a carry handle provided on a narrow panel, which is formed by two oblong openings positioned a certain distance apart, between which a strip of material with the function of a carry handle is located. At least the area of the openings of this narrow panel has a backing panel on the inside.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: September 17, 1991
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Ralf Jung, Martin Schledorn, Thomas Schnabel, Gunter Schulz, Kurt Springer, Adalbert Suss
  • PVC film for the production of identity cards
    Patent number: 4803114
    Abstract: The PVC film contains a very small percentage of carbon black, which makes it possible to mark the film excellently by means of a laser beam.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: February 7, 1989
    Assignee: Internationale Octrooimaatschappij "Octropa" B.V.
    Inventor: Martin Schledorn