Patents by Inventor Clark W. Eichhorn

Clark W. Eichhorn 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).

  • Phonograph
    Patent number: D279371
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: June 25, 1985
    Assignee: Galen C. Arrington
    Inventors: Galen C. Arrington, Allen E. Christ, Theodore W. Keller, Clark W. Eichhorn