Patents by Inventor Roscoe F. Johnson

Roscoe F. Johnson 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).

  • Oil spill control
    Patent number: 5009179
    Abstract: An oil-impermeable curtain is sealed to a vessel's hull at the top and lateral sides around a rupture, the bottom of the curtain being not sealed to the hull. This forms an open downwardly-facing pocket for containing oil leaking from the rupture.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: April 23, 1991
    Inventor: Roscoe F. Johnson