Patents by Inventor Wolfgang Eiser

Wolfgang Eiser 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).

  • Packaging material made of biaxially oriented polyolefin film
    Patent number: 6749933
    Abstract: The invention relates to a packaging material made of a multilayer oriented polyolefin film, which comprises a base layer and at least one first outer layer, whereby the first outer layer is placed in contact with itself or in contact with the opposing surface of the film or in contact with the surface of another film. This first outer layer contains an additive which absorbs light within the wavelength range of a laser such that when the film is locally irradiated by the laser, the area of irradiation experiences an increase in temperature that causes the polyolefin of the first outer layer to soften or melt in the irradiated area and to bond to another layer when cooled.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: June 15, 2004
    Assignee: Trespaphan GmbH
    Inventors: Thomas Dries, Wolfgang Eiser
  • Packaging material made of biaxially oriented polyolefin film
    Publication number: 20030003296
    Abstract: The invention relates to a packaging material made of a multilayer oriented polyolefin film, which comprises a base layer and at least one first outer layer, whereby the first outer layer is placed in contact with itself or in contact with the opposing surface of the film or in contact with the surface of another film. This first outer layer contains an additive which absorbs light within the wavelength range of a laser such that when the film is locally irradiated by the laser, the area of irradiation experiences an increase in temperature that causes the polyolefin of the first outer layer to soften or melt in the irradiated area and to bond to another layer when cooled.
    Type: Application
    Filed: June 19, 2002
    Publication date: January 2, 2003
    Inventors: Thomas Dries, Wolfgang Eiser