Patents by Inventor Robert S. Robinson

Robert S. Robinson 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).

  • Vinyl sulfonic acid - methacrylic acid copolymer passivators for high pressure boilers
    Patent number: 4719082
    Abstract: Certain polymers of vinylsulfonic and methacrylic acid promote the formation of passive, protective oxide films on steel surfaces under alkaline boiler conditions and at high pressures e.g. pH 11 1,000 to 1,500 psi, while giving good control of mineral deposition in the boiler.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: January 12, 1988
    Assignee: Nalco Chemical Company
    Inventor: Robert S. Robinson
  • Carboxylate N-vinylamide copolymers for internal scale control and passivation in high pressure boiler systems
    Patent number: 4711726
    Abstract: Copolymers of acrylic or methacrylic acid with certain N-vinyl amides are excellent treating agents to prevent scale and corrosion caused by boiler waters in contact with heat transfer surfaces.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: December 8, 1987
    Assignee: Nalco Chemical Company
    Inventors: Claudia C. Pierce, Robert S. Robinson, James F. Kneller