Patents by Inventor Edgar H. Schaefer

Edgar H. Schaefer 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).

  • Metal detector
    Patent number: D274607
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: July 10, 1984
    Assignee: Teknetics, Inc.
    Inventors: Edgar H. Schaefer, William J. Wend