Patents by Inventor Donald D. Ritchie

Donald D. Ritchie 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).

  • Method of inhibiting and/or eradicating marine fungal growth with obtusastyrene
    Patent number: 4133862
    Abstract: Marine fungal growth is inhibited and/or eradicated in wood by contacting e wood with obtusastyrene whose formula is: ##STR1##
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: January 9, 1979
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John D. Bultman, Donald D. Ritchie, Leonard Jurd