Patents by Inventor Uwe Boger

Uwe Boger 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).

  • TREATMENT OF WASTE WATER CONTAINING FLUORINATED ACIDS OR THE SALTS THEREOF
    Publication number: 20130168319
    Abstract: The invention relates to a method of separating off fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulphonic acids or salts thereof, from dilute aqueous solutions with the help of anion exchangers.
    Type: Application
    Filed: February 15, 2011
    Publication date: July 4, 2013
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Eike Gabel, Helmut Lahr, Thomas Gruber, Stefan Neumann, Uwe Böger, Axel Boddenberg
  • Process for preparing monomethylhydrazine
    Patent number: 7683217
    Abstract: The present invention relates to a process for preparing monomethylhydrazine by methylating hydrazine or hydrazinium hydrochloride or hydrazinium dihydrochloride with methyl chloride and/or a methano/HCl mixture, characterized in that the reaction mixture formed in the methylation is reacted with an organic base from the group of the alkylamines or alkanolamines and monomethylhydrazine is removed by distillation from the reaction mixture in a low boiler fraction and the low boiler fraction is optionally subjected to a further distillation.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: March 23, 2010
    Assignee: Saltigo GmbH
    Inventors: Uwe Boger, Ulrich Notheis, Mathias Siekmann
  • PROCESS FOR PREPARING MONOMETHYLHYDRAZINE
    Publication number: 20090187045
    Abstract: The present invention relates to a process for preparing monomethylhydrazine by methylating hydrazine or hydrazinium hydrochloride or hydrazinium dihydrochloride with methyl chloride and/or a methano/HCl mixture, characterized in that the reaction mixture formed in the methylation is reacted with an organic base from the group of the alkylamines or alkanolamines and monomethylhydrazine is removed by distillation from the reaction mixture in a low boiler fraction and the low boiler fraction is optionally subjected to a further distillation.
    Type: Application
    Filed: September 18, 2008
    Publication date: July 23, 2009
    Applicant: SALTIGO GMBH
    Inventors: Uwe Boger, Ulrich Notheis, Mathias Siekmann