Patents by Inventor Ronald A. DeMarco

Ronald A. DeMarco 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).

  • Bis(pentafluorosulfur)diacetylene polymer therefrom and preparations thereof
    Patent number: 4551349
    Abstract: A double substitution of pentafluorsulfur on diacetylene by a reaction of diacetylene with pentafluoro sulfur bromide, followed by a dehydrobromineaction with potassium hydroxide. The substituted diacetylene polymerizes in the liquid and gas phases. The polymer is useful as a coating and surface-treatment agent.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: November 5, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas A. Kovacena, Ronald A. DeMarco, Arthur W. Snow
  • Mono (pentafluorosulfur diacetylene, polymer therefrom, and preparations thereof
    Patent number: 4535011
    Abstract: A single substitution of pentafluorosulfur on diacetylene by a reaction of iacetylene with pentafluorosulfur bromine, followed by a dehydrobromination with potassium hydroxide. The substituted diacetylene polymerizes in the liquid and gas phases. The polymer is useful as a coating and surface treatment.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: August 13, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas A. Kovacina, Ronald A. DeMarco, Arthur W. Snow
  • Preparation of simple nitronium salts
    Patent number: 4456583
    Abstract: Simple nitronium salts are formed by adding nitrogen dioxide, a simple nitronium salt former, and fluorine gas to a vessel held at a low temperature, and allowing the vessel to warm until a reaction occurs.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: June 26, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ronald A. DeMarco, Michael J. Moran