Patents by Inventor Harmen Anne Meinema

Harmen Anne Meinema 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).

  • Nanocomposite coatings
    Patent number: 6815489
    Abstract: The invention relates to a method for preparing a composition for coating, wherein a layered, inorganic filler is subjected to an ion exchange with a modifier, which modifier comprises at least two ionic groups, which groups are separated from each other by at least four atoms, and wherein the modified filer, together with a polymer, is dispersed in a diluent.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: November 9, 2004
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventors: Hartmut Rudolf Fischer, Lawrence Fabian Batenburg, Harmen Anne Meinema, Marinus Pieter Hogerheide, Cornelis Hermanus Arnoldus Rentrop
  • Method for manufacturing a fiber-reinforced bioactive ceramic implant
    Patent number: 6248392
    Abstract: The invention relates to a method for manufacturing a fiber-reinforced bioactive ceramic implant, wherein a base form is made from fibrous material and interspaces between the different fibers are filled using chemical vapor phase infiltration. The fibrous material is coated with a composition which optimizes the bonding with the infiltrant. Preferably, a calcium-phosphate compound is brought between the fibers, which are preferably of the continuous-fiber type.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: June 19, 2001
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Ondersoek TNO
    Inventors: Rinse Alle Terpstra, Yvette Gertrude Roman, Klaas Timmer, Harmen Anne Meinema
  • Method for manufacturing a fiber-reinforced bioactive ceramic implant
    Patent number: 6093450
    Abstract: The invention relates to a method for manufacturing a fiber-reinforced bioactive ceramic implant, wherein a base form is made from fibrous material and interspaces between the different fibers are filled using chemical vapor phase infiltration. Preferably, a calcium-phosphate compound is brought between the fibers, which are preferably of the continuous-fiber type.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: July 25, 2000
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Rinse Alle Terpstra, Yvette Gertrude Roman, Klaas Timmer, Harmen Anne Meinema