Patents by Inventor Raymond Mark Cahen

Raymond Mark Cahen 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).

  • Preparation of spheroidal alumina particles
    Patent number: 3968225
    Abstract: A process for preparing aluminium oxide beads from alumina hydrogel, which comprises polymerizing, in a hot and substantially water-immiscible fluid, an aqueous mixture comprising alumina hydrogel and alumina hydrosol and a water-soluble monomer whose uncross-linked polymer is water-soluble or forms a gel, this mixture being dispersed as droplets into a hot fluid in which substantial polymerization of the monomer occurs.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: July 6, 1976
    Assignee: Labofina S.A.
    Inventors: Jacques Maurice Jules Ghislain Andre, Raymond Mark Cahen, Henri Robert Debus, Rene Odon Lammers, Hugo Johannes VAN Thillo