Patents by Inventor Ralf Rosskopf

Ralf Rosskopf 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).

  • Patent number: 9044409
    Abstract: The invention relates to the use of chromen-4-one derivatives of the formula I where R1 and R2 may be identical or different and are selected from H, —C(?O)—R7, —C(?O)—OR7, alkyl groups, alkenyl groups, hydroxyalkyl groups and/or cycloalkyl groups and/or cycloalkenyl groups, R3 is H or alkyl groups, R4 is H or OR8, R5 and R6 are selected from —H, —OH, alkyl groups, alkenyl groups and hydroxyalkyl groups, and R7 is H, alkyl groups, a polyhydroxyl compound, such as, preferably, an ascorbic acid radical or glycosidic radicals, and R8 is H or alkyl groups, where at least two of the substituents R1, R2 and R4-R6 are different from H or at least one substituent from R1 and R2 is —C(?O)—R7 or —C(?O)—OR7, for the care, preservation or improvement of the general state of the skin or hair.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: June 2, 2015
    Assignee: Merck Patent GmbH
    Inventors: Christophe Carola, Herwig Buchholz, Sylvia Huber, Ralf Rosskopf
  • Patent number: 8907110
    Abstract: The invention relates to specific benzodioxepin-3-one compounds, to a process for the preparation thereof and to the use thereof as dyes or as fluorescent emitters for organic electroluminescent devices (OLEDs) or for organic light-emitting electrochemical cells (OLECs), and to corresponding electronic devices.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: December 9, 2014
    Assignee: Merck Patent GmbH
    Inventors: Thomas Rudolph, Philipp Buehle, Ralf Rosskopf
  • Publication number: 20140234238
    Abstract: The invention relates to specific benzodioxepin-3-one compounds, to a process for the preparation thereof and to the use thereof as dyes or as fluorescent emitters for organic electroluminescent devices (OLEDs) or for organic light-emitting electrochemical cells (OLECs), and to corresponding electronic devices.
    Type: Application
    Filed: September 17, 2012
    Publication date: August 21, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Thomas Rudolph, Philipp Buehle, Ralf Rosskopf
  • Publication number: 20130309184
    Abstract: The invention relates to specific 1,3-dioxan-5-one compounds, to a process for the preparation thereof, and to the use thereof as dyes or as fluorescent emitters for organic electroluminescent devices (OLEDs) or for organic light-emitting electrochemical cells (OLECs), and to corresponding electronic devices.
    Type: Application
    Filed: January 16, 2012
    Publication date: November 21, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Thomas Rudolph, Philipp Buehle, Ralf Rosskopf
  • Patent number: 7960430
    Abstract: The invention relates to complexes of certain flavonoid derivatives, of the formula I compositions which comprise such derivatives, corresponding processes for the preparation of the flavonoid derivatives or of compositions comprising same, and the use thereof, in particular for the care, preservation or improvement of the general state of the skin or hair. Formula (1), in which Z1 to Z4 and Z6 to Z10 each, independently of one another, denote H, OH, CH3COO, alkoxy, hydroxyalkoxy, mono- or oligoglycoside radicals and where the alkoxy and hydroxyalkoxy groups may be branched and unbranched and can have 1 to 18 C atoms. Formula (II) denotes, Z5 is a mono- or the oligoglycoside radical, where bonded to this glycoside radical, in each case via an —O— group, is at least one radical selected from certain benzo molecule.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: June 14, 2011
    Assignee: Merck Patent GmbH
    Inventors: Corinna Wirth, Ralf Rosskopf, Herwig Buchholz
  • Publication number: 20100028278
    Abstract: The invention relates to the use of compounds of the formula (I) or of a composition comprising at least one compound of the formula (I), containing radicals as described in the claims, for the care, preservation or improvement of the general state of the skin or hair.
    Type: Application
    Filed: February 21, 2008
    Publication date: February 4, 2010
    Applicant: Merck Patent Gesellschaft MIT Beschrankter Haftung
    Inventors: Christophe Carola, Ralf Rosskopf
  • Patent number: 7592000
    Abstract: The present invention relates to the use of self-tanning substances for application to the human skin, with application taking place at elevated temperature, to corresponding methods of application to the human skin and to a cosmetic formulation which is suitable for said purpose.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: September 22, 2009
    Assignee: Merck Patent GmbH
    Inventors: Sabine Hitzel, Hansjürgen Driller, Herwig Buchholz, Silke Hornung, Francois Marchio, Frank Pflücker, Ralf Rosskopf
  • Patent number: 7345090
    Abstract: The invention relates to compounds of the formula I where R1, R2, R3, R4 and R5 have the meanings given in claim 1. The compound is suitable in particular for use in skin care compositions. They protect, firstly, against harmful oxidation reactions and, secondly, also act as UV filters.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: March 18, 2008
    Assignee: Merck Patent Gesellschaft mit Beschraenkter Haftung
    Inventors: Frank Pfluecker, Joachim Buenger, Hans-Juergen Driller, Herwig Buchholz, Ralf Rosskopf
  • Publication number: 20080045478
    Abstract: The invention relates to complexes of specific flavonoid derivatives, to preparations containing derivatives of this type, to corresponding methods for producing said derivatives or preparations containing the latter and to the use of the latter, in particular for the care, preservation or improvement of the general condition of the skin or hair.
    Type: Application
    Filed: July 12, 2005
    Publication date: February 21, 2008
    Applicant: MERCK PATENT GMBH
    Inventors: Herwig Buchholz, Ralf Rosskopf, Christophe Carola
  • Publication number: 20080027133
    Abstract: The invention relates to the use of chromen-4-one derivatives of the formula I where R1 and R2 may be identical or different and are selected from H, —C(?O)—R7, —C(?O)—OR7, alkyl groups, alkenyl groups, hydroxyalkyl groups and/or cycloalkyl groups and/or cycloalkenyl groups, R3 is H or alkyl groups, R4 is H or OR8, R5 and R6 are selected from —H, —OH, alkyl groups, alkenyl groups and hydroxyalkyl groups, and R7 is H, alkyl groups, a polyhydroxyl compound, such as, preferably, an ascorbic acid radical or glycosidic radicals, and R8 is H or alkyl groups, where at least two of the substituents R1, R2 and R4-R6 are different from H or at least one substituent from R1 and R2 is —C(?O)—R7 or —C(?O)—OR7, for the care, preservation or improvement of the general state of the skin or hair.
    Type: Application
    Filed: October 9, 2007
    Publication date: January 31, 2008
    Inventors: Christophe Carola, Herwig Buchholz, Sylvia Huber, Ralf Rosskopf
  • Publication number: 20070191305
    Abstract: The invention relates to complexes of certain chromone derivatives, to compositions which comprise such derivatives, to corresponding processes for the preparation of the chromone derivatives or of compositions comprising same, and to the use thereof, in particular for the care, maintenance or improvement of the general state of the skin or hair.
    Type: Application
    Filed: March 7, 2005
    Publication date: August 16, 2007
    Inventors: Christophe Carola, Ralf Rosskopf, Herwig Buchholz
  • Publication number: 20070155695
    Abstract: The invention relates to complexes of certain flavonoid derivatives, of the formula I compositions which comprise such derivatives, corresponding processes for the preparation of the flavonoid derivatives or of compositions comprising same, and the use thereof, in particular for the care, preservation or improvement of the general state of the skin or hair. Formula (1), in which Z1 to Z4 and Z6 to Z10 each, independently of one another, denote H, OH, CH3COO, alkoxy, hydroxyalkoxy, mono- or oligoglycoside radicals and where the alkoxy and hydroxyalkoxy groups may be branched and unbranched and can have 1 to 18 C atoms. Formula (II) denotes, Z5 is a mono- or the oligoglycoside radical, where bonded to this glycoside radical, in each case via an —O— group, is at least one radical selected from certain benzo molecule.
    Type: Application
    Filed: December 27, 2004
    Publication date: July 5, 2007
    Inventors: Corinna Wirth, Ralf Rosskopf, Herwig Buchholz
  • Publication number: 20070079754
    Abstract: The present invention relates to the use of self-tanning substances for application to the human skin, with application taking place at elevated temperature, to corresponding methods of application to the human skin and to a cosmetic formulation which is suitable for said purpose.
    Type: Application
    Filed: November 17, 2004
    Publication date: April 12, 2007
    Inventors: Sabine Hitzel, Hansjurgen Driller, Herwig Buchholz, Silke Hornung, Francois Marchio, Frank Pflucker, Ralf Rosskopf
  • Patent number: 6903134
    Abstract: The invention relates to a cosmetic or pharmaceutical formulation comprising at least one compound of formula (I). The cosmetics or pharmaceutical products are particularly suitable for the care of the skin in protecting against oxidative stress and ageing phenomena.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: June 7, 2005
    Assignee: Merck Patent GmbH
    Inventors: Frank Pflücker, Herwig Buchholz, Ralf Rosskopf, Joachim Bünger
  • Publication number: 20050043398
    Abstract: The invention relates to the use of chrome-4-one derivatives of the formula I where R1 and R2 may be identical or different and are selected from H, —C(?O)—R7, —C(?O)—OR7, alkyl groups, alkenyl groups, hydroxyalkyl groups and/or cycloalkyl groups and/or cycloalkenyl groups, R3 is H or alkyl groups, R4 is H or OR8, R5 and R6 are selected from —H, —OH, alkyl groups, alkenyl groups and hydroxyalkyl groups, and R7 is H, alkyl groups, a polyhydroxyl compound, such as, preferably, an ascorbic acid radical or glycosidic radicals, and R8 is H or alkyl groups, where at least two of the substituents R1, R2 and R4—R6 are different from H or at least one substituent from R1 and R2 is —C(?O)—R7 or —C(?O)—OR7, for the care, preservation or improvement of the general state of the skin or hair.
    Type: Application
    Filed: August 18, 2004
    Publication date: February 24, 2005
    Inventors: Christophe Carola, Herwig Buchholz, Sylvia Huber, Ralf Rosskopf
  • Publication number: 20040202624
    Abstract: The invention relates to compounds of the formula I 1
    Type: Application
    Filed: April 28, 2004
    Publication date: October 14, 2004
    Inventors: Frank Pfluecker, Joachim Buenger, Hans-Juergen Driller, Herwig Buchholz, Ralf Rosskopf
  • Patent number: 6683164
    Abstract: The invention relates to a method for recovering high-purity isoquerectin from bioflavonoid pastes, that is from mother-liquor residues which are produced during the recovery of flavonoids, by extraction with a solvent mixture of methyl acetate and water.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: January 27, 2004
    Assignee: Merck Patent GmbH
    Inventors: Herwig Buchholz, Michael Jungnitz, Michael Grund, Ralf Rosskopf, Hartmut Härtner
  • Patent number: 6673336
    Abstract: The invention relates to a conjugate which can be used for preparing dermatological and cosmetic compositions. The invention also relates to processes for preparing such conjugate and to its use.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: January 6, 2004
    Assignee: Merck Patent, GmbH
    Inventors: Herwig Buchholz, Eike Poetsch, Ralf Rosskopf, Ralf Anselmann, Michael Kirschbaum, Frank Pflücker
  • Publication number: 20030060426
    Abstract: The invention relates to a cosmetic or pharmaceutical formulation comprising at least one compound of formula (I). The cosmetics or pharmaceutical products are particularly suitable for the care of the skin in protecting against oxidative stress and ageing phenomena.
    Type: Application
    Filed: July 29, 2002
    Publication date: March 27, 2003
    Inventors: Frank Pflcker, Herwig Buchholz, Ralf Rosskopf, Joachim Bnger
  • Patent number: 6538021
    Abstract: Disclosed is a method for producing compounds of formula (I), wherein R1 represents H or (CH2)mOH, R2 represents H or (CH2)nOH, R3 represents H or (CH2)pOH and m, n and p represent 2-8 independently from one another. Said compounds are particularly suitable for use as food supplements. They are highly suitable for use in cosmetic formulations as UV filters, for instance.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: March 25, 2003
    Assignee: Merck Patent Gesellschaft
    Inventors: Herwig Buchholz, Ralf Rosskopf, Alice Lichtenberg, Christine Kraus