Patents by Inventor Pascal Christel

Pascal Christel 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 porous polycrystalline aragonite as a support material for in vitro culture of cells
    Patent number: 5480827
    Abstract: A three-dimensional solid support for the in vitro cultivation of cells consists essentially of porous polycrystalline aragonite in the form of a cylinder, sphere or plate. The support may be used to successively grow layers of different cells on the support, and is particularly useful for cultivating endothelial cells, fibroblasts and bone marrow cells.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: January 2, 1996
    Assignee: Inoteb
    Inventors: Genevieve Guillemin, Pascal Christel, Jean-Louis Patat, Alain Meunier
  • Bone prosthesis material containing calcium carbonate particles dispersed in a bioresorbable polymer matrix
    Patent number: 5433751
    Abstract: Bioresorbable bone prosthesis material containing particles of calcium carbonate, originating, for example, from coral skeleton, dispersed within a polymer matrix, the said particles being smaller than 1 mm in size and representing from 40 to 70% of the total weight, and the said polymer being a bioresorbable polymer.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: July 18, 1995
    Assignee: INOTEB
    Inventors: Pascal Christel, Su M. Li, Michel Vert, Jean-Louis Patat
  • New prosthesis parts, their preparation and their application
    Patent number: 4279249
    Abstract: Osteosynthesis parts are made of an absorbable polymer composition consisting of a matrix of lactic acid homopolymer, or a copolymer very high in lactic acid units, having discrete reinforcement elements embedded therein. The reinforcement elements are made of glycolic acid homopolymer or copolymers predominant in glycolic acid units. Such a composition may be shaped with a minimum of polymer degradation into osteosynthesis parts exhibiting good resilience, shock resistance, and tensile strength.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: July 21, 1981
    Assignees: Agence Nationale de Valorisation de la Recherche (ANVAR), Institut National de la Sante et de la Recherche Medicale
    Inventors: Michel Vert, Francois Chabot, Jean Leray, Pascal Christel