Patents by Inventor Wolf-Ruediger Krahnert

Wolf-Ruediger Krahnert 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).

  • Patent number: 8932837
    Abstract: Process for producing optically active 3-aminocarboxylic acid ester compounds of general Formula I, and the ammonium salts thereof, in which R1 stands for alkyl, alkoxyalkyl, alkenyl, cycloalkyl, heterocycloalkyl, aryl, or hetaryl, and R2 stands for alkyl, cycloalkyl or aryl, in which an enantiomeric mixture of a simply N-acylated 3-aminocarboxylic acid ester of general formula (I.b), in which R1 and R2 have the meanings given above and R3 stands for hydrogen, alkyl, cycloalkyl or aryl, is submitted to an enantioselective deacylation by adding a polypeptide according to claim 1.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: January 13, 2015
    Assignee: BASF SE
    Inventors: Bernhard Hauer, Thomas Friedrich, Rainer Stürmer, Nina Schneider, Susanne Sabrowski, Wolf-Rüdiger Krahnert
  • Patent number: 8703644
    Abstract: Aspects of the present invention relate to shaped bodies of compositions comprising a porous aromatic covalent framework polymer, wherein the polymer comprises at least one monomer unit, the at least one monomer unit comprising at least one aromatic ring and the at least one monomer unit having at least three binding sites to adjacent monomer units in the polymer and a core, wherein the at least three binding sites are located on at least one atom of the core and wherein the at least one atom is free of covalent bonds to hydrogen; and at least one binder additive. Other aspects of the invention relate to methods for the preparation of said shaped bodies and their uses.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: April 22, 2014
    Assignee: BASF SE
    Inventors: Manuela Gaab, Stefan Maurer, Wolf-Rüdiger Krahnert, Milan Kostur, Ulrich Müller, Ranjit Gokhale, Shrirang Bhikaji Hindalekar
  • Publication number: 20130337512
    Abstract: Process for producing optically active 3-aminocarboxylic acid ester compounds of general Formula I, and the ammonium salts thereof, in which R1 stands for alkyl, alkoxyalkyl, alkenyl, cycloalkyl, heterocycloalkyl, aryl, or hetaryl, and R2 stands for alkyl, cycloalkyl or aryl, in which an enantiomeric mixture of a simply N-acylated 3-aminocarboxylic acid ester of general formula (I.b), in which R1 and R2 have the meanings given above and R3 stands for hydrogen, alkyl, cycloalkyl or aryl, is submitted to an enantioselective deacylation by adding a polypeptide according to claim 1.
    Type: Application
    Filed: July 15, 2013
    Publication date: December 19, 2013
    Inventors: Bernhard Hauer, Thomas Friedrich, Rainer Stürmer, Nina Schneider, Susanne Krauser, Wolf-Rüdiger Krahnert
  • Publication number: 20130005002
    Abstract: Process for producing optically active 3-aminocarboxylic acid ester compounds of general Formula I, and the ammonium salts thereof, in which R1 stands for alkyl, alkoxyalkyl, alkenyl, cycloalkyl, heterocycloalkyl, aryl, or hetaryl, and R2 stands for alkyl, cycloalkyl or aryl, in which an enantiomeric mixture of a simply N-acylated 3-aminocarboxylic acid ester of general formula (I.b), in which R1 and R2 have the meanings given above and R3 stands for hydrogen, alkyl, cycloalkyl or aryl, is submitted to an enantioselective deacylation by adding a polypeptide according to claim 1.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 3, 2013
    Applicant: BASF SE
    Inventors: Bernhard Hauer, Thomas Friedrich, Rainer Stürmer, Nina Schneider, Susanne Krauser, Wolf-Rüdiger Krahnert
  • Publication number: 20120270731
    Abstract: Aspects of the present invention relate to shaped bodies of compositions comprising a porous aromatic covalent framework polymer, wherein the polymer comprises at least one monomer unit, the at least one monomer unit comprising at least one aromatic ring and the at least one monomer unit having at least three binding sites to adjacent monomer units in the polymer and a core, wherein the at least three binding sites are located on at least one atom of the core and wherein the at least one atom is free of covalent bonds to hydrogen; and at least one binder additive. Other aspects of the invention relate to methods for the preparation of said shaped bodies and their uses.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: BASF SE
    Inventors: Manuela Gaab, Stefan Maurer, Wolf-Rüdiger Krahnert, Milan Kostur, Ulrich Müller, Ranjit Gokhale, Shrirang Bhikaji Hindalekar
  • Publication number: 20090299089
    Abstract: The invention relates to a method for producing optically active 3-aminocarboxylic acid ester compounds. According to said method, an enantiomer mixture of a mono-N-acylated 3-aminocarboxylic acid ester, which mixture was previously enriched in an enantiomer, is subjected to deacylation and then to a further enantiomer enrichment by crystallization by adding an acidic salt-forming substance.
    Type: Application
    Filed: July 5, 2007
    Publication date: December 3, 2009
    Applicant: BASF SE
    Inventors: Christoph Jaekel, Wolf-Ruediger Krahnert, Rocco Paciello, Wolfgang Siegel
  • Patent number: 7531697
    Abstract: (Hetero)aromatic are prepared from halogen-substituted (hetero)aromatic compounds in the presence of a base and a palladium catalyst having a nonpyrophoric monodentate phosphane ligand. The phosphane ligand structure includes two radical groups having a tertiary carbon attached directly to phosphorous and one radical group having a primary carbon attached to the phosphorous.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 12, 2009
    Assignee: Degussa GmbH
    Inventors: Juan Jose Almena Perea, Axel Monsees, Renat Kadyrov, Thomas Riermeier, Kai Rossen, Wolf-Ruediger Krahnert, Matthias Beller, Stefan Klaus, Alexander Zapf