Patents by Inventor Klaus Thoeren

Klaus Thoeren 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).

  • CIGARETTE PACK MADE FROM PLASTIC FILM
    Publication number: 20010013476
    Abstract: A cigarette pack is described which is made from a thermoplastic film. In addition, an opening device for opening cigarette film packs made from thermoplastics and a process for the production of an opening device are described.
    Type: Application
    Filed: May 11, 1999
    Publication date: August 16, 2001
    Inventors: KLAUS THOEREN, HORST KROMER, RUTH AEY
  • Cigarette pack made from plastic film
    Patent number: 5996784
    Abstract: A cigarette pack is described which is made from a thermoplastic film. In addition, an opening device for opening cigarette film packs made from thermoplastics and a process for the production of an opening device are described.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: December 7, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Thoeren, Horst Kromer, Ruth Aey
  • Low temperature heat sealable biaxially oriented polypropylene films comprising propylene/butylene resin
    Patent number: 5811185
    Abstract: This invention provides a polyolefinic multilayer film which has a base layer containing polypropylene and at least one outer layer. The outer layer contains at least 50% by weight of a propylene/butylene resin composition. The propylene/butylene resin composition has a low degree of crystallinity and is modified by a surface treatment, e.g. corona treatment. The surface treatment raises the minimum heat-sealing temperature to the range of 85.degree. to 110.degree. C. and unexpectedly reduces the film's tendency to block. The resulting multilayer film is useful in packaging.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: September 22, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Schreck, Gunter Schloegl, Klaus Thoeren, Adolf Wilhelm