Patents by Inventor Gunter Siegers

Gunter Siegers 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 decolorizing and demineralizing fruit juice and must
    Patent number: 5106638
    Abstract: A process for demineralizing and decolorizing fruit juice and must is disclosed. Here fruit juice and must is chromatographed on strongly acid cation exchangers in the salt form.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: April 21, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventor: Gunter Siegers
  • Process for the preparation of bifunctional anion exchange resins, new bifunctional anion exchange resins and use thereof
    Patent number: 4988738
    Abstract: A process for the preparation of a bifunctional anion exchange resin by partial quaternization of a weakly basic anion exchanger containing tertiary amino groups which process comprises (a) partially loading the weakly basic anion exchanger with a strong acid and (b) quaternizing the partially loaded anion exchanger by means of a customary alkylating agent.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: January 29, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfred Mitschker, Peter M. Lange, Harold Heller, Friedrich Werner, Hans-Karl Soest, Gunter Siegers
  • Apparatus for the countercurrent treatment of liquids with adsorbents
    Patent number: 4461706
    Abstract: An apparatus for the countercurrent treatment of liquids with adsorbents in an adsorption-filter the space of which is divided by trays which are permeable to liquids into at least 2 chambers, in which before and/or during the charging of the adsorbent in the upward flow, the regeneration of the charged adsorbent in the downward flow and the backwasting in the upward flow particular levels to which the industrial chambers are filled are established by transferring adsorbent from one chamber to the adjacent chamber.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: July 24, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventor: Gunter Siegers
  • Adsorption process with resin transfer
    Patent number: 4369114
    Abstract: Countercurrent process for the treatment of liquids with adsorbents in a adsorption-filter the space of which is divided by trays which are permeable to liquids into at least 2 chambers, in which process before and/or during the charging of the adsorbent in the upward flow, the regeneration of the charged adsorbent in the downward flow and the backwasting in the upward flow particular levels to which the industrial chambers are filled are established by transferring adsorbent from one chamber to the adjacent chamber.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: January 18, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventor: Gunter Siegers