Patents by Inventor Joseph Nowocien

Joseph Nowocien 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).

  • Catalyst for the dehalogenation of .alpha.-halogenated carboxylic acids
    Patent number: 5475135
    Abstract: The invention relates to a catalyst comprising a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which has been used to dehalogenate .alpha.-halogenated carboxylic acids in the presence of hydrogen, and a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which is such that the granulometry of b) is very much lower than that of a) to form a homogeneous mixture as a result of the action of currents of .alpha.-halogenated carboxylic acid and hydrogen wherein said invention is particularly useful for regenerating palladium catalyst used in the purification of crude monochloroacetic acid.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: December 12, 1995
    Assignee: Societe Elf Atochem S.A.
    Inventors: Yves Correia, Dominique Jourdain, Joseph Nowocien, Alexandre Salerno
  • Catalyst for the dehalogenation of .alpha.-halogenated carboxylic acids
    Patent number: 5356850
    Abstract: The invention relates to a catalyst comprising a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which has been used to dehalogenate .alpha.-halogenated carboxylic acids in the presence of hydrogen, and a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which is such that the granulometry of b) is very much lower than that of a) to form a homogeneous mixture as a result of the action of currents of .alpha.-halogenated carboxylic acid and hydrogen.It is particularly useful for regenerating palladium catalysts used in the purification of crude monochloroacetic acid.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: October 18, 1994
    Assignee: Societe Elf Atochem S.A.
    Inventors: Yves Correia, Dominique Jourdain, Joseph Nowocien, Alexandre Salerno
  • Hydrodechlorination of higher chloromethanes
    Patent number: 5097081
    Abstract: The highly chlorinated methanes, e.g., carbon tetrachloride, are improvedly dechlorinated by reacting same with hydrogen in the presence of oxygen or an oxygen-containing gas, e.g., air, and a catalytically effective amount of a metal of the copper or precious metal Groups of the Periodic Table, typically in the form of a fixed or fluidized bed thereof, and advantageously in the gaseous phase.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: March 17, 1992
    Assignee: Atochem
    Inventors: Yves Correia, Joseph Nowocien