Patents by Inventor Bertrand Duval

Bertrand Duval 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).

  • Use of a cyclodextrin polycondensate or a composition comprising such a polycondensate, as a capturing agent
    Patent number: 10851223
    Abstract: The use of a cyclodextrin polycondensate or a composition comprising at least one cyclodextrin polycondensate, as an agent for capturing at least one substance chosen from a metal element and an organic molecule having an octanol/water partition coefficient, referred to as Log Kow, greater than or equal to 2, the cyclodextrin polycondensate being obtained by reacting the following compounds (A) to (C): (A) at least one cyclodextrin, (B) at least one linear, branched or cyclic polycarboxylic acid, that is saturated, unsaturated or aromatic, and (C) at least one ethylene vinyl alcohol copolymer (EVOH).
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 1, 2020
    Assignee: BIOSTART
    Inventors: Bertrand Duval, Fabrice Grenard, Jean-Baptiste Loiseau, Bernard Rougier
  • USE OF A CYCLODEXTRIN POLYCONDENSATE OR A COMPOSITION COMPRISING SUCH A POLYCONDENSATE, AS A CAPTURING AGENT
    Publication number: 20190055379
    Abstract: The use of a cyclodextrin polycondensate or a composition comprising at least one cyclodextrin polycondensate, as an agent for capturing at least one substance chosen from a metal element and an organic molecule having an octanol/water partition coefficient, referred to as Log Kow, greater than or equal to 2, the cyclodextrin polycondensate being obtained by reacting the following compounds (A) to (C): (A) at least one cyclodextrin, (B) at least one linear, branched or cyclic polycarboxylic acid, that is saturated, unsaturated or aromatic, and (C) at least one ethylene vinyl alcohol copolymer (EVOH).
    Type: Application
    Filed: February 3, 2017
    Publication date: February 21, 2019
    Inventors: Bertrand DUVAL, Fabrice GRENARD, Jean-Baptiste LOISEAU, Bernard ROUGIER
  • Load sensing hydraulic system
    Patent number: 6907728
    Abstract: A load sensing hydraulic system includes two pumps, at least one hydraulic fluid consumer, and a pressure balance circuit. In the case of no demand from the consumer, hydraulic fluid flows from the pumps through the pressure balance circuit and to tank. In the case of demand from the consumer for hydraulic fluid at a flow rate less than or equal to the flow rate provided by the first pump, hydraulic fluid from the first pump flows to the consumer, and hydraulic fluid from the second pump flows to the tank. In the case of a demand from the consumer for hydraulic fluid at a flow rate greater than the capacity of the first pump, hydraulic fluid from both pumps flow to the consumer.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: June 21, 2005
    Assignees: AGCO, S.A., Renault Agriculture, S.A.
    Inventors: Francis Cazier, Thierry Delort, Bertrand Duval, Gilles Hoessler, Patrick Lorriette
  • Load sensing hydraulic system
    Publication number: 20040069070
    Abstract: A load sensing hydraulic system includes two pumps, at least one hydraulic fluid consumer, and a pressure balance circuit. In the case of no demand from the consumer, hydraulic fluid flows from the pumps through the pressure balance circuit and to tank. In the case of demand from the consumer for hydraulic fluid at a flow rate less than or equal to the flow rate provided by the first pump, hydraulic fluid from the first pump flows to the consumer, and hydraulic fluid from the second pump flows to the tank. In the case of a demand from the consumer for hydraulic fluid at a flow rate greater than the capacity of the first pump, hydraulic fluid from both pumps flow to the consumer.
    Type: Application
    Filed: April 14, 2003
    Publication date: April 15, 2004
    Inventors: Francis Cazier, Thierry Delort, Bertrand Duval, Gilles Hoessler, Patrick Lorriette