Patents by Inventor Laurent Krummenacher

Laurent Krummenacher 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).

  • Method for forming a longitudinal solid body within an optical fiber
    Patent number: 7536876
    Abstract: A method of forming a longitudinal solid body within at least one longitudinal hole formed in an optical fiber, comprising the steps of placing a first end and a portion of the optical fiber in a heating chamber; keeping a second end of said optical fiber outside of the heating chamber; forcing a molten material into the longitudinal hole of the fiber from the first end; and thereupon longitudinally extracting the optical fiber from the heating chamber at a controlled rate. Preferably, the fiber is extracted while molten material is being urged into the fiber.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: May 26, 2009
    Assignee: Acreo AB
    Inventors: Michael Fokine, Lars-Erik Nilsson, Asa Claesson, Laurent Krummenacher, Walter Margulis, Leif Kjellberg
  • Method in connection with optical fibers
    Publication number: 20040258376
    Abstract: A method of forming a longitudinal solid body within at least one longitudinal hole formed in an optical fiber, comprising the steps of placing a first end and a portion of the optical fiber in a heating chamber; keeping a second end of said optical fiber outside of the heating chamber; forcing a molten material into the longitudinal hole of the fiber from the first end; and thereupon longitudinally extracting the optical fiber from the heating chamber at a controlled rate. Preferably, the fiber is extracted while molten material is being urged into the fiber.
    Type: Application
    Filed: August 18, 2004
    Publication date: December 23, 2004
    Inventors: Michael Fokine, Lars-Erik Nilsson, Asa Claesson, Laurent Krummenacher, Walter Margulis, Leif Kjellberg