Patents by Inventor Raymond Perruchoud

Raymond Perruchoud 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).

  • Fused calcined petroleum coke and method of formation
    Patent number: 6039791
    Abstract: Certain physical properties, chemical composition and a content of volatile carbonaceous materials define the limits of the use of coke by-products of crude oil refining as green cokes for use in the manufacture of calcined cokes suitable in the production of anodes for the reduction processes in the aluminum industry. These limits render large quantities of green coke unusable for the purpose set forth above. The invention shows a way to overcome these limits by rendering up to now unusable cokes usable as green cokes for the manufacture of calcined cokes for the production of anodes.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: March 21, 2000
    Inventors: Michael G. Kazeef, Raymond Perruchoud