Patents by Inventor Gerard Gellf

Gerard Gellf 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).

  • Low calorie sweetener
    Patent number: 5366962
    Abstract: The present invention concerns the use of fructosyl oligosaccharides as low-calorie sweeteners, and the foods, dietetic products and drinks containing them.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: November 22, 1994
    Assignee: Roussel Uclaf
    Inventors: Jacques Biton, Gerard Gellf, Jean-Marc Michel, Francois B. Paul, Pierre F. Monsan
  • Low-calorie sweeteners of fructosyl oligosaccharides and the food or dietetic products or drinks containing them
    Patent number: 4978751
    Abstract: The present invention concerns the use of fructosyl oligosaccharides as low-calorie sweeteners, and the foods, dietetic products and drinks containing them.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: December 18, 1990
    Assignee: Roussel-Ulcaf
    Inventors: Jacques Biton, Gerard Gellf, Jean-Marc Michel, Francois B. Paul, Pierre F. Monsan
  • Measuring cell for micro-assays, comprising membrane electrodes
    Patent number: 4235687
    Abstract: The measuring cell is composed of at least one cavity hollowed in a block of chemically inert material or material made chemically inert at least at the surface. The cavity defines a first cylindrical space whose bottom is, over a reduced part of its diameter, extended by a second space defining the measuring chamber proper, of conical, frustoconical or substantially hemispherical shape. The first cylindrical space is designed to receive a measuring electrode terminated by a magnetic torus and, applied, and if necessary held by means of a ferromagnetic ring, against the latter, a membrane, while inlet and outlet ducts for the liquids to be assayed are formed in the block. The cell is especially useful for micro-assays of biological fluids.
    Type: Grant
    Filed: May 16, 1978
    Date of Patent: November 25, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Louis Romette, Gerard Gellf, Daniel Thomas