Patents by Inventor Gerard Raguenes

Gerard Raguenes 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).

  • Patent number: 10105393
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerization of said native EPSs followed by a step of sulphating the resulting depolymerized derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g (m) g/ml.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 23, 2018
    Assignees: INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER (IFREMER), UNIVERSITE RENE DESCARTES PARIS 5
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gérard Raguenes, Anthony Courtois, Jean Guezennec
  • Publication number: 20150344848
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerisation of said native EPSs followed by a step of sulphating the resulting depolymerised derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g (m) g/ml.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gérard Raguenes, Anthony Courtois, Jean Guezennec
  • Patent number: 9125883
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerization of said native EPSs followed by a step of sulphating the resulting depolymerized derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g (m) g/ml.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: September 8, 2015
    Assignees: INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER (IFREMER), UNIVERSITE RENE DESCARTES PARIS 5
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gérard Raguenes, Anthony Courtois, Jean Guezennec
  • Publication number: 20140037597
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerisation of said native EPSs followed by a step of sulphating the resulting depolymerised derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g (m) g/ml.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicants: UNIVERSITY RENE DESCARTES PARIS 5, INSTITUT FRANCAIS DE RECHERCHE POUR L' EXPLOITATION DE LA MER (IFREMER)
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gérard Raguenes, Anthony Courtois, Jean Guezennec
  • Patent number: 8598142
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerisation of said native EPSs followed by a step of sulphating the resulting depolymerised derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g (m) g/ml.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: December 3, 2013
    Assignees: Institut Francais de Recherche pour l'Exploitation de la Mer (IFREMER), Universite Rene Descartes Paris 5
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gérard Raguenes, Anthony Courtois, Jean Guezennec
  • Publication number: 20110245199
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerisation of said native EPSs followed by a step of sulphating the resulting depolymerised derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g (m) g/ml.
    Type: Application
    Filed: January 7, 2011
    Publication date: October 6, 2011
    Applicants: INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER (IFREMER), UNIVERSITE RENE DESCARTES PARIS 5
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gérard Raguenes, Anthony Courtois, Jean Guezennec
  • Publication number: 20080131472
    Abstract: The invention relates to certain low-molecular weight sulphated polysaccharide derivatives of marine native exopolysaccharides (EPSs) excreted by mesophilic marine bacteria from a deep hydrothermal environment, wherein said derivatives can be obtained by means of a method which comprises a step of free radical depolymerisation of said native EPSs followed by a step of sulphating the resulting depolymerised derivatives. The present invention further relates to the use of said low-molecular weight sulphated polysaccharide derivatives as a wound-healing agent, particularly for preparing pharmaceutical compositions suitable for treating or preventing diseases of the connective tissues and particularly skin and gum tissues. The figure demonstrates how polysaccharide derivative GY 785 DRS according to the invention can stimulate fibroblast proliferation in latticed or reconstructed connective tissues at a concentration of 10 ?g(m)g/ml.
    Type: Application
    Filed: June 6, 2005
    Publication date: June 5, 2008
    Applicant: UNIVERSITE RENE DESCARTIES PARIS 5
    Inventors: Karim Senni, Farida Gueniche, Myriam Yousfi, Florence Fioretti, Gaston-Jacques Godeau, Sylvia Colliec-Jouault, Jacqueline Ratiskol, Corinne Sinquin, Gerard Raguenes, Anthony Courtois, Jean Guezennec
  • Patent number: 6436680
    Abstract: The invention concerns a hydrothermal bacterial strain of marine origin, belonging to the genus Vibrio, and an exopolysaccharide produced by said strain. Said exopolysaccharide is useful in particular for preparing medicines.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: August 20, 2002
    Assignee: Instit Francais de Recherche pour l'Exploitation de la Mer
    Inventors: Jean Guezennec, Patricia Pignet, Gérard Raguenes, Hélène Rougeaux