Patents by Inventor Henning-Peter Gehrken

Henning-Peter Gehrken 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).

  • Method for producing oxidic catalysts containing copper with oxidation number>0
    Patent number: 6716789
    Abstract: The disclosure is directed to a process for preparing an oxidic catalyst comprising copper in an oxidation state >0, which comprises treating a solid oxidic support material with an aqueous solution comprising at least one copper salt and at least one organic water soluble polymer which binds copper ions coordinatively in a concentration of from 0.1 to 100 g/l and then calcining, to the catalyst obtainable by this process and also to a process for dehydrogenating secondary alcohols to ketones using the catalysts, especially for dehydrogenating cyclohexanol.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: April 6, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Daniel Heineke, Ruprecht Meissner, Michael Hesse, Henning-Peter Gehrken
  • Active compound from a sponge
    Publication number: 20020198379
    Abstract: Palau'amine, of formula I below, may be isolated from a sponge (Stylotella agminata). The compound may be used in the manufacture of pharmaceutical compositions for the treatment of tumors, fungal infections and immunosuppressive affections.
    Type: Application
    Filed: June 28, 2002
    Publication date: December 26, 2002
    Applicant: Pharma Mar, s.a.
    Inventors: Robin Bryan Kinnel, Henning-Peter Gehrken, Paul Josef Scheuer, Dolores Garcia Gravalos, Glynn Thomas Faircloth
  • Active compound from a sponge
    Publication number: 20020062023
    Abstract: Palau'amine, of formula I below, may be isolated from a sponge (:). The compound may be used in the manufacture of pharmaceutical compositions for the treatment of tumors, fungal infections and immunosuppressive affections.
    Type: Application
    Filed: August 10, 2001
    Publication date: May 23, 2002
    Applicant: PharmaMar, s.a.
    Inventors: Robin Bryan Kinnel, Henning-Peter Gehrken, Paul Josef Scheuer, Dolores Garcia Gravalos, Glynn Thomas Faircloth
  • Novel optically active chroman derivatives, their preparation and novel intermediates
    Patent number: 4645845
    Abstract: Novel optically active chroman derivatives of the general formulae Ia and Ib ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: February 24, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Henning-Peter Gehrken, Hansgeorg Ernst, Joachim Paust
  • Preparation of .alpha.-tocopherol
    Patent number: 4550182
    Abstract: A process for the preparation of .alpha.-tocopherol of the formula I ##STR1## by reacting a chroman derivative with a C.sub.14 -Grignard reagent using a di-alkali metal tetrahalocuprate catalyst in a Schlosser-Fouquet reaction, wherein a chroman derivative of the general formula II ##STR2## where Y is a leaving group, especially Br, is used and is reacted, at from -70.degree. to 0.degree. C., first with a solution of about 1 equivalent of a Grignard compound of the general formula IIIX--Mg--R (III)where X is Cl, Br or I and R is straight-chain or branched alkyl of 1 to 14 carbon atoms, preferably methyl, ethyl or ##STR3## and then with a solution of a Grignard reagent of the formula IIIa ##STR4## in an ether solvent and a solution of a di-alkali metal tetrahalocuprate in an ether solvent. The novel process simplifies the preparation of 2RS,4'RS,8'RS-, 2R,4'RS,8'RS- or 2R,4'R,8'R-.alpha.-tocopherol by reacting a chroman structural unit, containing a C.sub.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: October 29, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hansgeorg Ernst, Henning-Peter Gehrken, Joachim Paust