Patents by Inventor Didier Guyot

Didier Guyot 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 manufacturing an article in the form of a slab and article manufactured
    Patent number: 5976441
    Abstract: A manufacturing process produces an article in slab form and more precisely an article made from a hydrated matrix which contains cement, sand, water and reinforcing fibers. The process includes the steps of mixing the constituents until a substantially homogeneous mineral paste is obtained; extruding the mineral paste in the form of a sheet having a thickness approximately equal to that of the article; and cutting the sheet to the size of the article. The article is made in the form of a slab and may be an imitative slate piece to be used as a roofing cover element.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: November 2, 1999
    Assignee: Materiaux de Construction International (M.C.I. S.A.)
    Inventors: Didier Guyot, Claude Champomier