Patents by Inventor Holger Paschold

Holger Paschold 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 the separation of organic substances from an aqueous mixture
    Patent number: 6793825
    Abstract: The present invention relates to a process for separating from an aqueous mixture one or more organic substances containing at least one positively charged and/or chargeable nitrogenous group by means of extraction via at least one porous membrane, wherein use is made of an extraction agent which contains at least partially relatively long-chain organic compounds and at least one liquid cation exchanger, and of a membrane that is wettable by either the aqueous mixture or by the extraction agent.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: September 21, 2004
    Assignee: DSM IP Assets B.V.
    Inventors: Dietrich H. Maass, Dirk Weuster-Botz, Ralf Takors, Christian Wandrey, Holger Paschold
  • Process for the separation of organic substances from an aqueous mixture
    Publication number: 20020158020
    Abstract: The present invention relates to a process for separating from an aqueous mixture one or more organic substances containing at least one positively charged and/or chargeable nitrogenous group by means of extraction via at least one porous membrane, wherein use is made of an extraction agent which contains at least partially relatively long-chain organic compounds and at least one liquid cation exchanger, and of a membrane that is wettable by either the aqueous mixture or by the extraction agent.
    Type: Application
    Filed: October 29, 2001
    Publication date: October 31, 2002
    Inventors: Dietrich H. Maass, Dirk Weuster-Botz, Ralf Takors, Christian Wandrey, Holger Paschold