Patents by Inventor Willy Engelen

Willy Engelen 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: 5639516
    Abstract: Method for making a gas diffusion electrode, whereby at least one layer of a liquid (7) containing active particles and a binding agent in a solvent is sprinkled or atomized on a porous, hydrophobic support (8), characterized in that the sprinkling or atomization is carried out by adding heat to the sprinkled or atomized liquid, so that the solvent is partly evaporated before the support (8) is reached.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 17, 1997
    Assignee: Vlaamse Instelling Voor Technologisch Onderzoek
    Inventors: Paul Dirven, Willy Engelen
  • Patent number: 5561000
    Abstract: Gas diffusion electrode with catalyst for an electrochemical cell with solid electrolyte, in particular for a fuel cell with solid electrolyte, which electrode contains a hydrophobic, porous back support (12), a non-catalytic intermediate layer (13) which contains electron conductive material and an active catalytic layer (14) which contains bound catalyst particles, characterized in that the intermediate layer (14) contains a mixture of electron conductive material and a proton conductive ionomer, and in that the active layer (14) forms the outside layer and the catalyst particles are bound by a proton conductive ionomer
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 1, 1996
    Assignee: Vlaamse Instelling Voor Technologisch Onderzoek
    Inventors: Paul Dirven, Willy Engelen