Patents by Inventor Daniel Sprenger

Daniel Sprenger 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 THE HYDROGENATION OF AROMATIC NITRO COMPOUNDS
    Publication number: 20240157343
    Abstract: The present invention relates (i) to a method for producing a doped copper-tetraammine-salt-based hydrogenation catalyst suitable for the hydrogenation of an aromatic nitro compound such that an aromatic amine is obtained, the hydrogenation catalyst comprising copper in metal form or in oxidic form and a doping metal selected from iron, cobalt, manganese, vanadium, zinc or a mixture of two or more thereof in metal form or in oxidic form on a carrier, the carrier comprising silicon dioxide shaped bodies and/or silicon carbide shaped bodies, (ii) to a doped copper-tetraammine-salt-based hydrogenation catalyst obtainable using the aforementioned method according to the invention, and (iii) to a method for producing an aromatic amine, comprising the hydrogenation of an aromatic nitro compound in the presence of a doped copper-tetraammine-salt-based hydrogenation catalyst comprising copper in metal form or in oxidic form and comprising a doping metal in metal form or in oxidic form on a carrier as hydrogenation ca
    Type: Application
    Filed: February 28, 2022
    Publication date: May 16, 2024
    Inventors: Bernd Pennemann, Lennart Sandbrink, Eberhard Zirngiebl, Thomas Kaese, Hans-Jürgen Quella, Paul Sprenger, Daniel Ullrich, Marc Williams
  • Additive for UV-sunscreen preparations
    Patent number: 8828365
    Abstract: The invention relates to the use of polymeric particles for boosting the UV absorption of an UV filter in an UV-sunscreen composition, wherein the polymeric particles comprise at least one polymeric particle comprising at least one chromophore having an UV absorption maximum at ?max?275 nm covalently bound thereto.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: September 9, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Jutta Hotz, Ulrich Huber, Volker Schehlmann, Daniel Sprenger
  • Synthesis of amines and intermediates for the synthesis thereof
    Patent number: 8822702
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: September 2, 2014
    Assignee: BASF SE
    Inventors: Ulrich Berens, Oliver Dosenbach, Daniel Sprenger
  • Synthesis of amines and intermediates for the synthesis thereof
    Patent number: 8710093
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: April 29, 2014
    Assignee: BASF SE Ludwigshafen
    Inventors: Ulrich Berens, Oliver Dosenbach, Daniel Sprenger
  • SYNTHESIS OF AMINES AND INTERMEDIATES FOR THE SYNTHESIS THEREOF
    Publication number: 20120220782
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 30, 2012
    Inventors: Ulrich BERENS, Oliver DOSENBACH, Daniel SPRENGER
  • SYNTHESIS OF AMINES AND INTERMEDIATES FOR THE SYNTHESIS THEREOF
    Publication number: 20110207941
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Inventors: ULRICH BERENS, OLIVER DOSENBACH, DANIEL SPRENGER
  • Synthesis of amines and intermediates for the synthesis thereof
    Patent number: 7968730
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: June 28, 2011
    Assignee: BASF SE
    Inventors: Ulrich Berens, Oliver Dosenbach, Daniel Sprenger
  • Ionic UV-A sunscreens and compositions containing them
    Patent number: 7897779
    Abstract: The present invention relates to novel 1,4-dihydropyridine derivatives, to novel cosmetic or dermatological sunscreen compositions containing these derivatives and the use of these derivatives for photoprotecting human skin and/or hair against UV radiation, in particular solar radiation.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: March 1, 2011
    Assignee: DSM IP Assets B.V.
    Inventors: Katja Berg-Schultz, Ulrich Huber, Daniel Sprenger
  • SYNTHESIS OF AMINES AND INTERMEDIATES FOR THE SYNTHESIS THEREOF
    Publication number: 20100087660
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, or especially of amides of the formula II, wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Inventors: ULRICH BERENS, OLIVER DOSENBACH, DANIEL SPRENGER
  • Synthesis of amines and intermediates for the synthesis thereof
    Patent number: 7645886
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula (I), or especially of amides of the formula (II), wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: January 12, 2010
    Assignee: Ciba Specialty Corporation
    Inventors: Ulrich Berens, Oliver Dosenbach, Daniel Sprenger
  • Additive For Uv-Sunscreen Preparations
    Publication number: 20080089852
    Abstract: The invention relates to the use of polymeric particles for boosting the UV absorption of an UV filter in an UV-sunscreen composition, wherein the polymeric particles comprise at least one polymeric particle comprising at least one chromophore having an UV absorption maximum at ?max?275 nm covalently bound thereto.
    Type: Application
    Filed: October 26, 2005
    Publication date: April 17, 2008
    Applicant: DSM IP ASSETS B.V.
    Inventors: Jutta Hotz, Ulrich Huber, Volker Schehlmann, Daniel Sprenger
  • Ionic Uv-A Sunscreens and Compositions Containing Them
    Publication number: 20070275090
    Abstract: The present invention relates to novel 1,4-dihydropyridine derivatives, to novel cosmetic or dermatological sunscreen compositions containing these derivatives and the use of these derivatives for photoprotecting human skin and/or hair against UV radiation, in particular solar radiation.
    Type: Application
    Filed: February 11, 2005
    Publication date: November 29, 2007
    Inventors: Katja Berg-Schultz, Ulrich Huber, Daniel Sprenger
  • Synthesis of amines and intermediates for the synthesis thereof
    Publication number: 20060058367
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula (I), or especially of amides of the formula (II), wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Application
    Filed: December 12, 2003
    Publication date: March 16, 2006
    Inventors: Ulrich Berens, Oliver Dosenbach, Daniel Sprenger