Patents by Inventor Derek M. Dewberry

Derek M. Dewberry 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).

  • Exercise platform
    Patent number: D330235
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: October 13, 1992
    Assignee: High Bar Productions, Ltd.
    Inventors: John S. Traetta, Derek M. Dewberry