Patents by Inventor Jean-Francois Brunelli

Jean-Francois Brunelli 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).

  • Acrylic copolymers as additives for inhibiting paraffin deposit in crude oil, and compositions containing same
    Patent number: 6750305
    Abstract: Copolymers of N-vinylpyrrolidone and alkyl acrylates and/or methacrylates containing 10 to 50 carbon atoms with particular chain distributions can be used as additives for inhibiting wax deposition and improving the pour properties of crude oils. Compositions containing crude oil and said additives.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: June 15, 2004
    Assignees: Institut Francais du Petrole, Ceca, S.A.
    Inventors: Patrick Gateau, Annie Barbey, Jean François Brunelli
  • Acrylic copolymers as additives for inhibiting paraffin deposit in crude oil, and compositions containing same
    Publication number: 20030135003
    Abstract: Copolymers of N-vinylpyrrolidone and alkyl acrylates and/or methacrylates containing 10 to 50 carbon atoms with particular chain distributions can be used as additives for inhibiting wax deposition and improving the pour properties of crude oils.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 17, 2003
    Inventors: Patrick Gateau, Annie Barbey, Jean Francois Brunelli
  • Acrylic copolymers as additives for inhibiting paraffin deposition in crude oils, and compositions containing same
    Patent number: 6218490
    Abstract: Acrylic copolymers for use as additives for inhibiting paraffin deposition in crude oils, and compositions containing the oils and said additives, are disclosed. Specifically, polymeric additives useful for inhibiting paraffin deposition in and improving the flow properties of crude oils, and compositions containing the crude petroleum oils and said additives, are disclosed. Said additives are essentially alcohol acrylate copolymers comprising 10-50 carbons with special chain distributions, as well as the corresponding 2- and/or 4-vinylpyridine terpolymers.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: April 17, 2001
    Assignee: CECA S.A.
    Inventors: Jean-Francois Brunelli, Stephane Fouquay