Patents by Inventor Lawrence H. Kotacska

Lawrence H. Kotacska 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).

  • Pure fused silica, furnace and method
    Patent number: 6574991
    Abstract: An article of relatively pure silica, and a furnace and method of producing the article. The article is produced by collecting molten silica particles in a refractory furnace in which at least a portion of the refractory has been exposed to a halogen-containing gas to react with contaminating metal ions in the refractory.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: June 10, 2003
    Assignee: Corning Incorporated
    Inventors: Robert S. Pavlik, Jr., Lawrence H. Kotacska