Patents by Inventor Ralph R. Grams

Ralph R. Grams 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).

  • Marine coating compositions and method
    Patent number: 4678512
    Abstract: Marine coating for inhibiting the growth of marine life on surfaces in contact with seawater comprising a coating material having dispersed therein an effective amount of particles of a polycyclic naphthacenecarboxamide, and/or other active agents. A preferred agent is tetracycline. The principal use of the composition of this invention is to coat the hulls of boats and ships and other surfaces contacted by seawater.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: July 7, 1987
    Inventor: Ralph R. Grams
  • Method of inhibiting the growth of marine life on surfaces in contact with seawater
    Patent number: 4552813
    Abstract: An antifouling coating for inhibiting the growth of marine life on surfaces in contact with seawater comprising a coating material having dispersed therein an effective amount of particles of a polycyclic naphthacenecarboxamide, preferably tetracycline. The principle use of composition of this invention is to coat the hulls of boats and ships and other surfaces contacted by seawater.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: November 12, 1985
    Inventor: Ralph R. Grams