Patents by Inventor Kai Jakoby

Kai Jakoby 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).

  • Method of producing a polymer for making proton conductive membranes
    Publication number: 20060252841
    Abstract: In a method of producing a polymer for making proton conductive membranes on the basis of a base polymer other than a vinyl polymer said base polymer is a) bromated or iodized, b) the bromated or iodized polymer is reacted with at least one of phosphonic acid esters and phosphoric acid esters in the presence of a transition metal catalyst whereby a reaction polymer is formed, c) the reaction polymer of step b is hydrolyzed, and d) from the hydrolyzed polymer of step c) a polymer film is produced.
    Type: Application
    Filed: July 15, 2006
    Publication date: November 9, 2006
    Inventors: Kai Jakoby, Suzana Pereira, Klaus-Victor Peinemann
  • Proton conductive membrane for electromechanical applications
    Patent number: 7101637
    Abstract: A proton-conductive membrane for electrochemical applications, particularly for use in fuel cells, is provided. The membrane consists of a polymer based on a base polymer, other than a vinyl polymer, which includes aromatic rings and also sulfonic acid groups which are bound covalently directly to the aromatic rings of the base polymer, that is, without spacer groups therebetween.
    Type: Grant
    Filed: November 23, 2002
    Date of Patent: September 5, 2006
    Assignee: GKSS-Forschungszentrum Geesthacht
    Inventors: Kai Jakoby, Suzana Nunes Pereira, Klaus-Victor Peinemann
  • Ion conductive membrane for electrochemical application
    Patent number: 6869715
    Abstract: An ion conductive membrane for electrochemical applications is provided for forming the membrane on the basis of a polyimide or copolyimide polymer, which contains in its structure heterocyclic groups, particularly in the form of imidazole-, pyridin or pyrimidin groups. The electrochemical applications include particularly the use of such membranes in fuel cells.
    Type: Grant
    Filed: November 23, 2002
    Date of Patent: March 22, 2005
    Assignee: GKSS-Forschungszentrum Geesthacht, GmbH
    Inventors: Yolanda Alvarez-Gallego, Suzana Pereira Nunes, Kai Jakoby, Javier de Abajo
  • Proton conductive membrane for electromechanical applications
    Publication number: 20040101731
    Abstract: A proton-conductive membrane for electrochemical applications, particularly for use in fuel cells, is provided. The membrane consists of a polymer based on a base polymer, other than a vinyl polymer, which includes aromatic rings and also sulfonic acid groups which are bound covalently directly to the aromatic rings of the base polymer, that is, without spacer groups therebetween.
    Type: Application
    Filed: November 23, 2002
    Publication date: May 27, 2004
    Inventors: Kai Jakoby, Suzana Nunes Pereira, Klaus-Victor Peinemann
  • Ion conductive membrane for electrochemical application
    Publication number: 20040101732
    Abstract: An ion conductive membrane for electrochemical applications is provided for forming the membrane on the basis of a polyimide or copolyimide polymer, which contains in its structure heterocyclic groups, particularly in the form of imidazole-, pyridin or pyrimidin groups. The electrochemical applications include particularly the use of such membranes in fuel cells.
    Type: Application
    Filed: November 23, 2002
    Publication date: May 27, 2004
    Inventors: Yolanda Alvarez-Gallego, Suzana Pereira Nunes, Kai Jakoby, J. Abajo