Patents by Inventor Holger Grzybowski

Holger Grzybowski 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).

  • Wound and sintered vitreous silica article and method of making
    Patent number: 4340627
    Abstract: A method is described for the production of porous bodies from vitreous silica without the use of tools. Vitreous silica wool and/or threads are wound in layers on a form. After the coil has attained a certain minimum thickness, the threads of each succeeding layer are permanently bonded by heating the threads of the preceding layer at the points where the threads cross. The form is removed, and then the threads on the inside of the body are bonded together.The bodies are used for the production of high-purity blocks of silicon for solar cells.
    Type: Grant
    Filed: August 28, 1980
    Date of Patent: July 20, 1982
    Assignee: Heraeus Quarzschmelze GmbH
    Inventors: Heinz Herzog, Heinrich Mohn, Karl-Albert Schulke, Holger Grzybowski