Patents by Inventor Emile Franta

Emile Franta 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).

  • Polymerizations catalyzed by very finely divided lithium
    Patent number: 4048420
    Abstract: Polymerizations catalyzed by very finely divided lithium.The process is characterized in using lithium having an average particle diameter of less than 2.mu. and preferably of 0.1.mu. or less as a polymerization initiator.The process permits .alpha.-.omega. dilithic oligomers to be obtained.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: September 13, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Bernard Francois, Michel Vernois, Emile Franta
  • Very finely divided lithium and process for manufacturing same
    Patent number: 4040815
    Abstract: Very finely divided lithium.A mixture of inert gas and fine particles of lithium in suspension in the said gas is filtered on a bed of solid bodies which can be stirred, the mesh size of said bodies, the height of said bed and the speed of stirring being such that the metal particles are retained without causing the formation of a metallic slab on the surface.The suspensions of fine lithium particles in solutions are stable.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: August 9, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Bernard Francois, Michel Vernois, Paul Martin, Emile Franta