Patents by Inventor Matheus Petrus Marie Maessen

Matheus Petrus Marie Maessen 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).

  • Paper and cardboard comprising starch- and protein-containing material
    Patent number: 6022450
    Abstract: Paper and cardboard containing starch and protein fractions of flour having improved strength, stiffness and surface properties, wherein the starch and protein fractions are subjected to a degradation with ammonium persulfate, amylase, an acid, protease or a combination thereof before being introduced to the paper or cardboard. After the starch and protein fractions have been degraded, they can be added to the paper fiber matrix or used as a sizing or glue.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: February 8, 2000
    Assignee: Roermond Papier B.V.
    Inventors: Louis Peter Marie Van Kessel, Gerardus Henricus Andreas Kuypers, Matheus Petrus Marie Maessen