Patents by Inventor John R. May

John R. 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).

  • Immobilization of waste material
    Patent number: 4280921
    Abstract: A method for immobilizing or solidifying waste material which includes blending the waste material with powdered metal and subjecting the mixture of waste material and powdered metal to high pressure, and immobilized waste products obtained thereby.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: July 28, 1981
    Assignee: Newport News Industrial Corporation
    Inventor: John R. May