Patents by Inventor Didier Groffe

Didier Groffe 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).

  • Asphaltene-stabilising molecules having a tetrapyrrolic ring
    Patent number: 8177960
    Abstract: Use of a biodegradable molecule or a mixture of biodegradable molecules having tetrapyrrolic rings, as stabilizers for the asphaltenes present in crude oil and crude oil derivatives.
    Type: Grant
    Filed: December 24, 2007
    Date of Patent: May 15, 2012
    Assignee: Scomi Anticor
    Inventors: Jean Rouet, Didier Groffe, Mathieu Salaün
  • ASPHALTENSE-STABILISING MOLECULES HAVING A TETRAPYRROLIC RING
    Publication number: 20100051508
    Abstract: Use of a biodegradable molecule or a mixture of biodegradable molecules having tetrapyrrolic rings, as stabilizers for the asphaltenes present in crude oil and crude oil derivatives.
    Type: Application
    Filed: December 24, 2007
    Publication date: March 4, 2010
    Inventors: Jean Rouet, Didier Groffe, Mathieu Salaün
  • Methods for producing polyester amides based on polyisobutylenes, polyester amides produced thereby, and uses therefor in stabilizing crude oil
    Patent number: 6946524
    Abstract: Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group consisting of monoethanolamine and alkylamines of the general formula R—NH2, wherein R represents an alkyl group having from 1 to 4 carbon atoms; are described. The polyester amides thus produced and their uses in stabilizing asphaltenes in crude oil and crude oil derivatives are also described.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: September 20, 2005
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Wolfgang Breuer, Paul Birnbrich, Claus-Peter Herold, Stephan Von Tapavicza, Didier Groffe, Matthias Hof
  • Use of polyester amides for the stabilisation of asphaltenes in crude oil
    Publication number: 20040039125
    Abstract: Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group consisting of monoethanolamine and alkylamines of the general formula R—NH2, wherein R represents an alkyl group having from 1 to 4 carbon atoms; are described. The polyester amides thus produced and their uses in stabilizing asphaltenes in crude oil and crude oil derivatives are also described.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 26, 2004
    Inventors: Wolfgang Breuer, Paul Birnbrich, Claus-Peter Herold, Stephan Von Tapavicza, Didier Groffe, Matthias Hof