Patents by Inventor Alain Bertoli

Alain Bertoli 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).

  • Chromized refractory steel, a process for its production and its uses in anti-coking applications
    Patent number: 6348145
    Abstract: Coated steel articles are described which exhibit anti-coking properties, and a process for producing such articles by depositing an anti-coking coating on a matrix constituted by a steel, in general a refractory steel. These articles comprise: a refractory steel substrate comprising at least 0.2% by weight of carbon; a carbon-rich diffusion barrier; and an outer layer containing 90% to 99% by weight of chromium, coated by a cementation method. More particularly, the coated steel articles constitute tubes for reactors or stills used in various refining or petrochemical processes.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: February 19, 2002
    Assignee: Institut Francais du Petrole
    Inventors: François Ropital, Paul Broutin, Marcel François, Alain Bertoli