Patents by Inventor D. Michael Williams

D. Michael Williams 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).

  • Toy rattle
    Patent number: D254795
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: April 22, 1980
    Assignee: Johnson & Johnson
    Inventors: Richard A. Chase, D. Michael Williams, Thomas J. Alexandris