Patents by Inventor Robert Bernot

Robert Bernot 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).

  • Stable polymer solutions for spray drift control
    Patent number: 4413087
    Abstract: A dilute solution of an acrylamide polymer having a molecular weight greater than 1,000,000 which is stable against viscosity loss reduction due to aging which comprises a major portion of water, from 0.01-3% by weight of an acrylamide polymer, and from 0.1-5% by weight of a water-soluble monohydric alcohol which contains from 1-3 carbon atoms.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: November 1, 1983
    Assignee: Nalco Chemical Company
    Inventor: Robert Bernot
  • Hydrolyzed polyacrylamide latices for secondary oil recovery
    Patent number: 4034809
    Abstract: A process for recovering oil from subterranean oil-bearing formations which entails the use of a water treating medium. The water treating medium comprises an acrylamide-acrylic acid copolymer formed by hydrolyzing a water-in-oil emulsion containing from 2-75% by weight of finely divided acrylamide polymer to the extent that between 0.8 and about 67% of the amide groups originally present in the acrylamide polymer are converted into carboxyl groups.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: July 12, 1977
    Assignee: Nalco Chemical Company
    Inventors: Kenneth G. Phillips, Robert Bernot, Edward G. Ballweber