Patents by Inventor Roland Bachelard

Roland Bachelard 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).

  • Process for extracting chromium from chromium ores
    Patent number: 3963824
    Abstract: Process of extracting chromium from a chromium ore or concentrate by oxidation, which comprises suspending the chromium ore or concentrate in a bath of molten salts and introducing an oxygen-containing gas into the suspension in a sufficient amount and for a sufficient amount of time to oxidize chromium therein.
    Type: Grant
    Filed: June 10, 1975
    Date of Patent: June 15, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventor: Roland Bachelard