Patents by Inventor Leonard J. Wozniak

Leonard J. Wozniak 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).

  • Filter support assembly
    Patent number: 4505816
    Abstract: A filter holder is provided adapted to receive a filter sock and provides at least 65 percent usable area of the filter sock.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: March 19, 1985
    Assignee: The Dow Chemical Company
    Inventors: Leonard J. Wozniak, William C. Brasie
  • Index sheet with integrally attached notepads of varying size
    Patent number: D329457
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: September 15, 1992
    Inventors: William A. Westover, Leonard J. Wozniak