Patents by Inventor Christian Cruaud

Christian Cruaud 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).

  • Patent number: 5478390
    Abstract: Cuttable concrete capable of being cut and sculpted with traditional tools and process for the manufacture and moulding thereof. The concrete consists of a mixture of a volume V of mineral material essentially in the form of crushed oolitic limestone, a volume V1, less than V, of a carbonated binder, preferably lime and/or cement based, and excess water. The cuttable concrete is useful in the building industry, interior decoration, urban fittings and the manufacture of casting moulds.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: December 26, 1995
    Inventors: William Cruaud, Christian Cruaud