Patents by Inventor Inge Stein

Inge Stein 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).

  • N-methyl-N-[(1S)-1-phenyl-2-(3S)-hydroxypyrrolidin-1-yl)ethyl]-2 -2-diphenylacetamide
    Patent number: 6060504
    Abstract: The invention relates to a novel heat-stable form of N-methyl-N-[(1S)-1-phenyl-2-((3S)-3-hydroxypyrrolidin-1-yl)ethyl]-2,2-diph enylacetamide and to a process for the preparation and isolation of this compound in this novel form and to use for the production of medicaments which contain this compound and/or one of its physiologically acceptable salts.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: May 9, 2000
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Inge Stein, Holger Beeres, Klaus Beschmann, Steffen Neuenfeld, Andrew Barber
  • Benzylidenenorcamphor derivatives
    Patent number: 5730960
    Abstract: The use of a benzylidenenorcamphor compound of the formula I ##STR1## wherein Phe is a phenyl group which is unsubstituted or substituted by 1 to 5 hydroxyl, alkyl or alkoxy groups having 1 to 10 C atoms, andn is 1 or 2.as sunscreen filters,and also novel compounds of the formula I, their preparation and use as UV filters, in particular in cosmetic or pharmaceutical preparations.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: March 24, 1998
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Inge Stein, Michael Schwarz, Ulrich Heywang, Michael Kompter
  • Ketotricyclo ?.5.2.1.0! decane derivatives
    Patent number: 5705169
    Abstract: The invention relates to ketotricyclo?5.2.1.0!decane derivatives of the formula I ##STR1## wherein Phe is a phenylene group which is unsubstituted or substituted by 1 to 4 hydroxyl, alkyl or alkoxy groups having 1 to 10 C atoms,and their preparation and use as UV filters, in particular in cosmetic or pharmaceutical preparations.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: January 6, 1998
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Inge Stein, Michael Schwarz, Ulrich Heywang
  • Bis(methylidene)phenylene derivatives
    Patent number: 5677314
    Abstract: The invention relates to bis(methylidene)phenylene derivatives of the formulaA.sup.1 -Phe-A.sup.2 Iwherein Phe is an unsubstituted or substituted phenylene group, A.sup.1 is a group selected from the formulae 1, 2 and 3 and A.sup.2 is a group other than A.sup.1 selected from the formulae 1, 2 and 3 ##STR1## wherein R.sup.1 and R.sup.2 are independently H or CH.sub.3 and their preparation and use as UV filters, in particular cosmetic and pharmaceutical preparations.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: October 14, 1997
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Inge Stein, Michael Schwarz, Ulrich Heywang, Michael Kompter
  • Process for preparing substituted 4-methylidenecinnamic acid derivatives
    Patent number: 5639883
    Abstract: A process for preparing substituted 4-methylidenecinnamic acid derivatives of Formula (I). ##STR1## The variables are defined herein. The compounds of Formula (I) can be used, for example, as UV absorbers.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 17, 1997
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Eike Poetsch, Volker Meyer, Ulrich Heywang, Inge Stein, Michael Schwarz, Michael Kompter