Patents by Inventor Karlheinz Ulrich G. Hahn

Karlheinz Ulrich G. Hahn 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).

  • Automatic washing machine and method
    Patent number: 11266289
    Abstract: The invention relates to a method of automatic dishwashing of dishware using wash water, in which, in a first step, a first composition, which comprises an oxygen bleach but substantially no enzyme, is supplied to the wash water, and the dishware is washed in a washing zone with the oxygen bleach-containing wash water; and, in a second step which occurs after the first step, a second composition, which comprises an enzyme but substantially no bleach, is supplied to the wash water, and the dishware is washed in said washing zone with the enzyme-containing wash water. The invention also relates to an automatic dishwasher and a cartridge suitable for use in this method.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 8, 2022
    Assignee: RECKITT BENCKISER (BRANDS) LIMITED
    Inventors: Caroline Rigobert, Boris Seitz, Karl-Heinz Mohrhard, Frank Dierkes, Karlheinz Ulrich G. Hahn, Jorg Pflug, Judith Preuschen, Pavlinka Roy, Marco Haag, Dietmar Van Loyen, Stuart Campbell, Helmut Lunz
  • Automatic Washing Machine And Method
    Publication number: 20170215689
    Abstract: The invention relates to a method of automatic dishwashing of dishware using wash water, in which, in a first step, a first composition, which comprises an oxygen bleach but substantially no enzyme, is supplied to the wash water, and the dishware is washed in a washing zone with the oxygen bleach-containing wash water; and, in a second step which occurs after the first step, a second composition, which comprises an enzyme but substantially no bleach, is supplied to the wash water, and the dishware is washed in said washing zone with the enzyme-containing wash water. The invention also relates to an automatic dishwasher and a cartridge suitable for use in this method.
    Type: Application
    Filed: August 5, 2015
    Publication date: August 3, 2017
    Inventors: Caroline Rigobert, Boris Seitz, Karl-Heinz Mohrhard, Frank Dierkes, Karlheinz Ulrich G. Hahn, Jorg Pflug, Judith Preuschen, Pavlinka Roy, Marco Haag, Dietmar Van Loyen, Stuart Campbell, Helmut Lunz