Patents by Inventor Obrecht Francois

Obrecht Francois 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).

  • Photosensitive cell for the decomposition of water
    Patent number: 4595568
    Abstract: The invention relates to a photosensitive cell for the decomposition of water of the type formed by an aqueous medium containing a photosensitizer positively charged both in the reduced state and in the oxidized state, an acceptor, an oxygen forming catalyst and a hydrogen forming catalyst.The cell according to the invention is characterized in that each of the two catalysts is fixed to a different support and in that the support of the oxygen forming catalyst is formed by a first, negative charge carrying colloid while the support of the hydrogen forming catalyst is formed by a second, positive charge carrying colloid.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: June 17, 1986
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Henri Van Damme, Jose J. Fripiat, Hubert Nijs, Philippe Marceau, Obrecht Francois