Patents by Inventor Pierre Martineu

Pierre Martineu 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: 4977192
    Abstract: A granular polymer composition having increased water absorption and desorption capability, resistance to photogradation and increased life span, comprising a water-insoluble but swellable cross-linked polymer material formed of at least one polymer and/or copolymer prepared from at least one unsaturated ethylene monomer having at least one carboxylic, amide, sulfuric, sulfonic, phosphoric, phosphonic, or hydroxyl functional group and at least one powdered mineral charge well dispersed in and intimately bonded to said polymer as a result of its introduction into the mixture of monomers of the same type or of a different type before their polymerization into said polymer or copolymer.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: December 11, 1990
    Assignees: Coatex S.A., Conservatome S.A.
    Inventors: Pierre Martineu, Christiane Saunier, Jacky Rousset, Christian Jacquemet
  • Patent number: 4108937
    Abstract: Hollow articles are made from a cylindrical preform by first elongating the preform to reduce its diameter and then blowing the elongated preform in a blow mold to produce the completed article, which is thus biaxially oriented.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: August 22, 1978
    Assignee: Carnaud Total Interplastic
    Inventors: Pierre Martineu, Jean-Francois Gregoire