Patents by Inventor Darrel May

Darrel May 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).

  • Wine cell
    Patent number: D332725
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: January 26, 1993
    Assignee: Wiresmith Limited
    Inventor: Darrel May