Patents by Inventor Howard A. Osofsky

Howard A. Osofsky 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).

  • Keycard
    Patent number: D295920
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: May 31, 1988
    Assignee: Howard A. Osofsky
    Inventors: Howard A. Osofsky, Franklin H. Sinclair
  • Keycard with indexing channels
    Patent number: D300148
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: March 7, 1989
    Inventors: Howard A. Osofsky, Franklin H. Sinclair