Patents by Inventor Ernest L. Woodfill, Jr.

Ernest L. Woodfill, Jr. 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).

  • Hearing aid and method for preparing same
    Patent number: 5321757
    Abstract: A method is disclosed for forming a hearing aid by the in situ molding of a room temperature curing material about hearing aid components. The in situ molding of the custom hearing aid provides an acoustical and comfort fit and minimizes processing involving multiple impression and casting procedures.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: June 14, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ernest L. Woodfill, Jr.