Patents by Inventor Josef Grabmeier

Josef Grabmeier 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: 4173459
    Abstract: A method of producing a light conducting fiber by providing a rotating, heatable crucible having a cylindrical interior wall, successively depositing optical material forming layers from a liquid phase with the first layer being deposited on the interior wall of the rotating crucible and subsequent layers being deposited on a previous deposited layers, transforming each layer into a film of optical material to form a workpiece having a plurality of concentric cylindrical films of optical materials, and subsequently pulling the fiber from the workpiece while it is still in the crucible.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: November 6, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hubert Aulich, Josef Grabmeier, Hans Pink