Patents by Inventor Han Lin Liao

Han Lin Liao 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).

  • Heat-treatment device and process
    Patent number: 5989647
    Abstract: Heat-treatment device which includes a cooling unit comprising delivery nozzles which deliver at least one coolant, characterized in that it furthermore comprises a shielding element designed so as to maintain a gaseous shielding atmosphere around at least part of the delivery nozzles.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: November 23, 1999
    Assignee: L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Francis Remy, Bernard Hansz, Vincent Gourlaouen, Christian Coddet, Fran.cedilla.ois Pesme, Han Lin Liao