Patents by Inventor Ralph Sena

Ralph Sena 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).

  • Modular pet habitat
    Patent number: D246914
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: January 10, 1978
    Assignee: Reliance Pet Products Corporation
    Inventors: Albert J. Dinnerstein, Mervin A. Savitt, Ralph Sena