Patents by Inventor Alexandre Laurent

Alexandre Laurent 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: 8112234
    Abstract: A method is provided for estimating the components of the force torsor that are applied to a bearing, which method provides for the measurement of a vector (Vm) of N deformations and for the use of a physical model linking a vector (Q) of at most N representative values of the components of the torsor with a deformation measurement vector, the method comprises the following iterative steps: introduction of a vector (Q) of representative values into the model in order to calculate a deformation measurement vector (Vc); and carrying out a pertinence test (T) between the deformation measurement vector (Vc) which is calculated and the measured vector (Vm); if the test (T) is negative, establishing at least one new vector (Q) of representative values to be introduced into the model according to the result of the test; or if the test (T) is positive, storing the vector (Q) of introduced values; wherein the estimated components of the force torsor are established according to at least one stored vector (Q) of values
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: February 7, 2012
    Assignee: SNR Roulements
    Inventors: Christophe Duret, David Kwapisz, Alexandre Laurent
  • Publication number: 20100260845
    Abstract: The present invention provides a biodegradable biopolymer matrix for surgical and/or therapeutic use comprising chitosan hydrochloride and dextran dialdehyde is in the ratio of 1:1 to 1:2. The invention further provides a process for preparing the biopolymer matrix and a kit for a surgical and/or therapeutic use comprising the biopolymer matrix.
    Type: Application
    Filed: December 8, 2008
    Publication date: October 14, 2010
    Applicant: Indo-French Center for the Promotion of Advanced Research
    Inventors: A. Jayakrishnan, Denis Labarre, Alexandre Laurent, Biji Balakrishnan, P.R. Umashankar
  • Publication number: 20090210172
    Abstract: A method is provided for estimating the components of the force torsor that are applied to a bearing, which method provides for the measurement of a vector (Vm) of N deformations and for the use of a physical model linking a vector (Q) of at most N representative values of the components of the torsor with a deformation measurement vector, the method comprises the following iterative steps: introduction of a vector (Q) of representative values into the model in order to calculate a deformation measurement vector (Vc); and carrying out a pertinence test (T) between the deformation measurement vector (Vc) which is calculated and the measured vector (Vm); if the test (T) is negative, establishing at least one new vector (Q) of representative values to be introduced into the model according to the result of the test; or if the test (T) is positive, storing the vector (Q) of introduced values; wherein the estimated components of the force torsor are established according to at least one stored vector (Q) of values
    Type: Application
    Filed: February 3, 2009
    Publication date: August 20, 2009
    Applicant: SNR ROULEMENTS
    Inventors: Christophe Duret, David Kwapisz, Alexandre Laurent
  • Patent number: 7407646
    Abstract: A charged biomaterial including at least one first hydrophilic polymer, and superparamagnetic iron oxide particles complexed with a second hydrophilic polymer substantially identical to or different from the first hydrophilic polymer, wherein the superparamagnetic iron oxide particles complexed with the second hydrophilic polymer are distributed substantially homogeneously and substantially without aggregates in the first hydrophilic polymer. A process for preparing a charged biomaterial including forming an aqueous solution of hydrophilic monomers and superparamagnetic iron oxide particles complexed with a hydrophilic polymer including monomers substantially identical to or different from the hydrophilic monomers, polymerizing the solution and forming a polymer hydrogel in which are distributed substantially homogeneously and substantially without aggregates the superparamagnetic iron oxide particles complexed with the hydrophilic polymer.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: August 5, 2008
    Assignee: L'Assistance Publique-Hopitaux de Paris Etablissement Public de Sante
    Inventors: Alexandre Laurent, Denis Labarre
  • Publication number: 20060210635
    Abstract: The invention relates to injectable gel-forming compositions which contain an association of linear and cross-linked polymers and are embodied in the form of a suspension. The use of said compositions, in particular for filling pipes and cavities is also disclosed.
    Type: Application
    Filed: January 5, 2004
    Publication date: September 21, 2006
    Applicants: ASSISTANCE PUBLIQUE-HOPITAUX DE PARIS, UNIVERSITE PARIS SUD XI
    Inventors: Alexandre Laurent, Denis Labarre, Jiri Labsky, Jiri Honiger, Rene Chapot, Michel Wassef, Aymeric Seron
  • Publication number: 20040071776
    Abstract: The invention concerns porous polymeric biomaterials containing a porous polymeric matrix optionally filled with biological and/or chemical active agents, the method for preparing same and their uses, in particular as implant.
    Type: Application
    Filed: November 7, 2003
    Publication date: April 15, 2004
    Inventors: Vincent Boudy, Alexandre Laurent, Denis Labarre, Jean-Claude Chaumeil
  • Publication number: 20030077225
    Abstract: A charged biomaterial including at least one first hydrophilic polymer, and superparamagnetic iron oxide particles complexed with a second hydrophilic polymer substantially identical to or different from the first hydrophilic polymer, wherein the superparamagnetic iron oxide particles complexed with the second hydrophilic polymer are distributed substantially homogeneously and substantially without aggregates in the first hydrophilic polymer. A process for preparing a charged biomaterial including forming an aqueous solution of hydrophilic monomers and superparamagnetic iron oxide particles complexed with a hydrophilic polymer including monomers substantially identical to or different from the hydrophilic monomers, polymerizing the solution and forming a polymer hydrogel in which are distributed substantially homogeneously and substantially without aggregates the superparamagnetic iron oxide particles complexed with the hydrophilic polymer.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 24, 2003
    Applicant: X-BIO
    Inventors: Alexandre Laurent, Denis Labarre
  • Publication number: 20020065529
    Abstract: The invention relates concerns electrolytically detachable biocompatible metal wire turns and a conductor guide compatible in shape and size with their axial translation displacement in a catheter. Said turns and devices are designed for setting electrically detachable vascular occlusion turns with adjustable length.
    Type: Application
    Filed: May 1, 2001
    Publication date: May 30, 2002
    Applicant: Assistance Publique-Hopitaux De Paris
    Inventors: Alexandre Laurent, Laurent Domas
  • Patent number: 5648100
    Abstract: The present invention concerns the use of microspheres for therapeutic embolization consisting of a hydrophilic acrylic copolymer coated with a cell adhesion promoter.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 15, 1997
    Assignees: Assistance Publique Hopitaux de Paris, BioSepra S.A.
    Inventors: Egisto Boschetti, Michel Brouard, Ludovic Drouet, Pierre Girot, Alexandre Laurent, Michel Wassef
  • Patent number: 5635215
    Abstract: The present invention concerns the use of microspheres for therapeutic embolization consisting of a hydrophilic acrylic copolymer coated with a cell adhesion promoter.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: June 3, 1997
    Assignees: BioSepra S.A., Assistance Publique Hopitaux de Paris
    Inventors: Egisto Boschetti, Michel Brouard, Ludovic Drouet, Pierre Girot, Alexandre Laurent, Michel Wassef