Patents by Inventor John S. Fabisak

John S. Fabisak 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 of processing glass tubing
    Patent number: 4228206
    Abstract: The alkali content of the inner surface of glass tubing is reduced by introducing an acidic gas into the glass tubing at the hot draw stage to react with alkali ions on the inner surface of the glass.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: October 14, 1980
    Assignee: GTE Products Corporation
    Inventor: John S. Fabisak