Patents by Inventor Tobias Stab

Tobias Stab 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 O-Alkylated aminoalcohols
    Patent number: 9169193
    Abstract: A process for preparing O-alkylated amino alcohols by reacting N-unsubstituted or N-monosubstituted amino alkoxide salts with alkyl halides, the amino alkoxide salts being formed by means of alkali metal or alkaline earth metal hydroxides.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: October 27, 2015
    Assignee: BASF SE
    Inventors: Wolfgang Siegel, Gerd Haderlein, Tobias Stäb
  • PROCESS FOR PREPARING N-HETEROCYCLIC OPTICALLY ACTIVE ALCOHOLS
    Publication number: 20120135476
    Abstract: Process for preparing N-heterocyclic optically active alcohols of the formula I by reduction of the corresponding ketone, where the reduction is carried out using a dehydrogenase having the polypeptide sequence SEQ ID NO:2 or NO:4, or using a polypeptide sequence where, compared to SEQ ID NO:2 or NO:4, up to 25% of the amino acid residues are modified by deletion; insertion, substitution or a combination thereof.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: BASF SE
    Inventors: NINA SCHNEIDER, MELANIE BONNEKESSEL, MICHAEL BREUER, JÜRGEN DÄUWEL, KLAUS DITRICH, ULRICH KARL, TOBIAS STÄB
  • Method for producing O-alkylated cyclic aminoalcohols
    Patent number: 8173844
    Abstract: A process for preparing O-alkylated amino alcohols of the formula (I) by reacting N-unsubstituted or N-monosubstituted amino alkoxide salts with alkyl halides, the amino alkoxide salts being formed by means of alkoxides
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: May 8, 2012
    Assignee: BASF SE
    Inventors: Wolfgang Siegel, Gerd Haderlein, Tobias Stab
  • Method for Producing O-Alkylated Aminoalcohols
    Publication number: 20110144390
    Abstract: A process for preparing O-alkylated amino alcohols by reacting N-unsubstituted or N-monosubstituted amino alkoxide salts with alkyl halides, the amino alkoxide salts being formed by means of alkali metal or alkaline earth metal hydroxides.
    Type: Application
    Filed: December 11, 2006
    Publication date: June 16, 2011
    Applicant: BASF SE
    Inventors: Wolfgang Siegel, Gerd Haderlein, Tobias Stab
  • PROCESS FOR PREPARING AQUEOUS POLYACRYLIC ACID SOLUTIONS BY MEANS OF CONTROLLED FREE-RADICAL POLYMERIZATION
    Publication number: 20100105832
    Abstract: A process for preparing aqueous solutions of homo- or copolymers of acrylic acid with a mean molar mass Mn of from 500 g/mol to 10 000 g/mol by means of controlled free-radical polymerization in an aqueous medium.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Applicant: BASF SE
    Inventors: Szilard Csihony, Tobias Stab, Christian Hubert Weidl
  • Method For Producing O-Alkylated Cyclic Aminoalcohols
    Publication number: 20080306304
    Abstract: A process for preparing O-alkylated amino alcohols of the formula (I) by reacting N-unsubstituted or N-monosubstituted amino alkoxide salts with alkyl halides, the amino alkoxide salts being formed by means of alkoxides
    Type: Application
    Filed: December 11, 2006
    Publication date: December 11, 2008
    Inventors: Wolfgang Siegel, Gerd Haderlein, Tobias Stab