Patents by Inventor Xavier Serrat Sitjas

Xavier Serrat Sitjas 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).

  • Method for manufacturing a multi-layered pulp product comprising a filler between layers
    Publication number: 20040244927
    Abstract: The present invention refers to a procedure for the manufacture of a multi-layer pulp product, preferably paper or cardboard. Said procedure consists of applying a filler between at least two layers of fibre material in motion prior to the final joining together of them. The filler is preferably of inorganic origin, though it can consist of organic components, and calcium sulphate is preferably used.
    Type: Application
    Filed: December 4, 2003
    Publication date: December 9, 2004
    Inventors: Fabienne Pianta, Xavier Serrat Sitjas