Patents by Inventor Ursula Meier-Krug

Ursula Meier-Krug 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).

  • Process for removing stains from fabrics
    Patent number: 4834900
    Abstract: A process for the removal of stains from fabrics, such as carpets. The process comprises treating the stained areas of the fabrics with a liquid, paste-form or foam-form stain remover and subjecting the entire fabric to cleaning with a powder-form cleaning composition before the treated areas have dried. The preferred stain remover is an aqueous composition containing a surfactant, and the preferred powder-form cleaning composition contains a finely divided cellulose powder as an adsorbent. The new process is suitable above all for the cleaning of carpets and carpeted floors.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 30, 1989
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Heinz Soldanski, Bernd-Dieter Holdt, Petra Keup, Ursula Meier-Krug