Patents by Inventor Georg Kuehlein

Georg Kuehlein 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).

  • Patent number: 8679601
    Abstract: A medical fluid container of a flexible plastic material is produced as follows: at first, a plastic compound is produced from a heterogeneous mixture of a first, lower-viscosity raw polymer component having a first melt viscosity and a second, higher-viscosity raw polymer component having a second melt viscosity which is greater than the first melt viscosity. Then the plastic compound is extruded. The extrudate is confectioned. Finally, the confectioned extrudate is sealed to form the finished fluid container. A film tubing may serve as intermediate product for the medical container. The medical container or the film tubing thus produced has surface structures with a typical average size of 15 to 200 ?m. The production method requires little effort while fulfilling demanding requirements with respect to the stability of the produced fluid container.
    Type: Grant
    Filed: December 8, 2007
    Date of Patent: March 25, 2014
    Assignee: Raumedic AG
    Inventors: Georg Kühlein, Martin Schenkel
  • Publication number: 20100042066
    Abstract: A medical fluid container of a flexible plastic material is produced as follows: at first, a plastic compound is produced from a heterogeneous mixture of a first, lower-viscosity raw polymer component having a first melt viscosity and a second, higher-viscosity raw polymer component having a second melt viscosity which is greater than the first melt viscosity. Then the plastic compound is extruded. The extrudate is confectioned. Finally, the confectioned extrudate is sealed to form the finished fluid container. A film tubing may serve as intermediate product for the medical container. The medical container or the film tubing thus produced has surface structures with a typical average size of 15 to 200 ?m. The production method requires little effort while fulfilling demanding requirements with respect to the stability of the produced fluid container.
    Type: Application
    Filed: December 8, 2007
    Publication date: February 18, 2010
    Applicant: RAUMEDIC AG
    Inventors: Georg Kühlein, Martin Schenkel
  • Patent number: 4557959
    Abstract: A multilayer medical working means comprises at least two walls each made of a glass-clear, soft plastic, with one of the two walls being physiologically unobjectionable and the other wall or walls being a physiologically questionable wall provided with at least one physiologically questionable and/or untested additive. A full-area circumferential connection exists between the physiologically unobjectionable wall and the physiologically questionable wall. A softener gradient is provided between the walls of the working means in such a manner that the physiologically unobjectionable wall has a higher softener content than the physiologically questionable wall directly adjacent thereto which contains at least one physiologically questionable and/or untested additive. The position of the additive is kept constant in the adjacent physiologically questionable wall against the gradient pressure of the softener.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: December 10, 1985
    Assignee: Rehau Plastiks AG & Co.
    Inventors: Georg Kuehlein, Ernst Gerlach