Patents by Inventor Hans-Peter Koehler

Hans-Peter Koehler 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 consolidating particulate solids and cleaning products therefrom II
    Patent number: 6689305
    Abstract: A bed of particulate solids including some hydrated materials can be converted by controlled irradiation with subinfrared electromagnetic radiation into a unitary porous solid that is mechanically strong enough for easy handling. When the particulate solids include typical mildly acid to alkaline cleaner materials, a block or tablet especially suitable for automatic cleaning machinery, with a very fast dissolution rate in water, can readily be obtained.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: February 10, 2004
    Assignee: Ecolab Inc.
    Inventors: Peter J. Fernholz, Sandra Witt, Hans-Peter Koehler, Wolfgang Preibsch, Horst Pruehs, Karl-Heinz Rogmann
  • Process for consolidating particulate solids
    Patent number: 5858299
    Abstract: A bed of particulate solids including some hydrated materials can be converted by controlled irradiation with subinfrared electromagnetic radiation into a unitary porous solid that is mechanically strong enough for easy handling. When the particulate solids include typical acid to alkaline cleaner materials, a block or tablet especially suitable for automatic cleaning machinery, with a very fast dissolution rate in water, can readily be obtained.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: January 12, 1999
    Assignee: Ecolab, Inc.
    Inventors: Peter J. Fernholz, Sandra Witt, Hans-Peter Koehler, Wolfgang Preibsch, Horst Pruehs, Karl-Heinz Rogmann
  • Process for the production of alkyl glycosides
    Patent number: 5698684
    Abstract: In the acid-catalyzed production of alkyl glycosides, the molar quantity of catalyst used can be clearly reduced in all processes of industrial interest by using sulfosuccinic acid as catalyst as opposed to conventional catalysts, such as sulfuric acid or p-toluene sulfonic acid. The end reaction products are lighter in color and less clouded than alkyl glycosides obtained with conventional catalysts. Sulfosuccinic acid is readily biodegradable.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: December 16, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karlheinz Hill, Manfred Weuthen, Hans-Peter Koehler