Patents by Inventor Frank Hoeper

Frank Hoeper 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 preparing Caldehyde mixtures with a high n-pentanal content
    Patent number: 8461394
    Abstract: A process for preparing a C5 aldehyde mixture from a hydrocarbon mixture comprising at least one linear butene by terminal hydroformylation under isomerizing conditions, using a catalyst system comprising rhodium, a bisphosphite ligand, and an amine.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: June 11, 2013
    Assignee: Evonik Oxeno GmbH
    Inventors: Hans-Gerd Lueken, Dirk Fridag, Udo Lenz, Hermann-Josef Schulte-Althoff, Klaus-Diether Wiese, Alfred Kaizik, Patrick Muhlack, Wilfried Bueschken, Frank Hoeper
  • Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbons
    Patent number: 8269050
    Abstract: The invention relates to a process for preparing ETBE from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes, by reacting the isobutene present, distillatively removing a fraction comprising 1-butene and isobutene and again reacting the isobutene present therein to give ETBE.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 18, 2012
    Assignee: Evonik Oxeno GmbH
    Inventors: Jochen Praefke, Armin Rix, Silvia Santiago Fernandez, Matthias Groemping, Frank Hoeper, Udo Peters, Joerg Leistner, Franz Nierlich, Dirk Roettger
  • PROCESS FOR PREPARING C5 ALDEHYDE MIXTURES WITH A HIGH N-PENTANAL CONTENT
    Publication number: 20110130595
    Abstract: A process for preparing a C5 aldehyde mixture from a hydrocarbon mixture comprising at least one linear butene by terminal hydroformylation under isomerizing conditions, using a catalyst system comprising rhodium, a bisphosphite ligand, and an amine.
    Type: Application
    Filed: April 28, 2009
    Publication date: June 2, 2011
    Applicant: Evonik Oxeno GmbH
    Inventors: Hans-Gerd Lueken, Dirk Fridag, Udo Lenz, Hermann-Josef Schulte-Althoff, Klaus-Diether Wiese, Alfred Kaizik, Patrick Muhlack, Wilfried Bueschken, Frank Hoeper
  • Process for preparing ethyl tert-butyl ether using ethanol dewatered by a membrane process
    Patent number: 7473808
    Abstract: A process for preparing ethyl tert-butyl ether (ETBE) using low-water ethanol obtained by membrane dewatering at least two streams of relatively water-rich ethanol that have a different water content. by dewatering at membranes.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: January 6, 2009
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Armin Rix, Frank Hoeper, Jochen Praefke, Wilfried Bueschken