Patents by Inventor Matthias Rudolf Sprehe

Matthias Rudolf Sprehe 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).

  • Self-bonded corrugated fibrous web
    Patent number: 7427434
    Abstract: A self-bonded corrugated web made from a primary pre-bonded web layer of thermoplastic fibers having a substantially uniform thickness. The primary pre-bonded web layer is arranged to form corrugations forming a corrugation pattern of parallel corrugation lines, which can be parallel to the longitudinal extension of the web. The corrugated web is heat- or melt-fusion bonded in regions forming a primary bonding pattern of a plurality of primary bonding pattern lines, which are arranged non-parallel to the corrugation lines and which intersect at least two of the corrugation lines, for stabilizing the corrugations.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: September 23, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Ludwig Busam, Martin Geoffrey Scaife, Matthias Rudolf Sprehe, Gabriele Stiehl