Patents by Inventor Harmut Rüf

Harmut Rüf 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).

  • Cellulosic molded body, method for manufacturing it and use thereof
    Patent number: 8367203
    Abstract: The present invention relates to a cellulosic molded body containing a cellulose/clay nanocomposite, wherein the clay component of said nanocomposite comprises a material selected from the group consisting of unmodified hectorite clays and hydrophilically modified hectorite clays.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: February 5, 2013
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Harmut Rüf, Heinrich Firgo, Gert Kroner
  • Process and device for the production of cellulosic moulded bodies
    Patent number: 6706224
    Abstract: The invention relates to a process for the production of a spunlaid fabric containing solvent-spun cellulosic fibers.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 16, 2004
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Heinrich Firgo, Rudolf Kraft, Harmut Rüf, Christian Schlossnikl
  • Composition containing fine solid particles
    Patent number: 6488876
    Abstract: The invention relates to a composition intended to be admixed to a moldable solution of cellulose in an aqueous tertiary amine oxide, which composition consists of solid particles, a mixture of a tertiary amine oxide and water, in which the solid particles are dispersed, and at least a further substance, with the proviso that the solid particles and said at least further substance are different from cellulose and that the content of water is such that no cellulose will precipitate when admixing the composition to the moldable cellulose solution. The composition according to the invention is storage stable to a high degree and suitable for introducing additives into the moldable cellulose solution.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: December 3, 2002
    Assignee: Lenzing Aktiengesellschaft
    Inventor: Harmut Rüf