Patents by Inventor Friedrich-Karl Lampert

Friedrich-Karl Lampert 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).

  • Essentially fiber-free cellulose ether with improved water retention, method for the production and use thereof
    Patent number: 6593468
    Abstract: This invention relates to a process for producing a substantially fiber-free carboxymethyl cellulose which predominantly exhibits elastic properties, to the use thereof as a superabsorbent material, and to the use thereof as an adjuvant substance for achieving suitable rheological and water retention properties for the cosmetics, pharmaceutical and food sectors, and for industrial applications, e.g. as an additive for coating materials, for the sealing of cables and for use in tunnelling and in civil and underground engineering.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: July 15, 2003
    Assignee: Wolff-Walsrode AG
    Inventors: Werner Lange, Bernd Schriewer, Friedrich-Karl Lampert, Wilhelm Oppermann, Jörn-Bernd Pannek, René Kiesewetter
  • Viscous cellulose-containing mixture (paste) and a process for the production of aqueous coating emulsions therefrom
    Patent number: 4517324
    Abstract: A viscous cellulose substance containing paste which is characterized by containing an alkoxylated plasticizer and a ratio of solid to the organic solvent phase of .gtoreq.1 and which can be used to prepare a lacquer consisting at most of 25% of an organic solvent.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 14, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Erhard Luhmann, Lutz Hoppe, Klaus Szablikowski, Friedrich-Karl Lampert