Patents by Inventor Rainer Kröpke

Rainer Kröpke 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: 6703001
    Abstract: Active ingredient combinations comprising tris(2-ethylhexyl) 4,4′,4″-(1,3,5-triazine-2,4,6-triyltriimino)trisbenzoate and one or more esters of branched-chain carboxylic acids and branched-chain alcohols.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: March 9, 2004
    Assignee: Beiersdorf AG
    Inventors: Heinrich Gers-Barlag, Rainer Kröpke
  • Patent number: 6653397
    Abstract: A water-in-oil emulsion (a) with a content of water and optionally water-soluble substances totaling at least 70% by weight, and with a content of lipids, emulsifiers and lipophilic constituents totaling at most 20%, in each case based on the total weight of the preparations, (b) with a lipid phase whose total polarity is between 20 and 45 mN/m, (c) comprising at least one interface-active substance chosen from the group of substances of polyethers of an oligomeric or polymeric molecular unit B, the monomers of which are branched or unbranched &agr;, &ohgr;-alkylene glycols (&agr;, &ohgr;-dihydroxyalkanes) having 3-25 carbon atoms and two units A composed of polyoxyethylene groups, where the molecular units A and B are linked together according to the scheme A-O-B-O-A via ether groups, (d) comprising at least one substance chosen from the group of cationic polymers.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: November 25, 2003
    Assignee: Beiersdorf AG
    Inventors: Andreas Bleckmann, Rainer Kröpke
  • Patent number: 6649577
    Abstract: Water-in-oil emulsions (a) with a viscosity of at most 5000 mPa·s (b) with a content of water and water-soluble substances totalling at least 75% by weight, and with a content of lipids, emulsifiers and lipophilic constituents totalling at most 15%, based in each case on the total weight of the preparations, (c) the oil phase of which comprises at least 75% of one or more substances chosen from the group of nonpolar lipids which are liquid at room temperature and have a polarity of greater than 30 mN/m, and/or silicones of any polarity this weight proportion being based on the total weight of the oil phase, (d) comprising at least one interface-active substance chosen from the group of substances of the general formula (I)
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: November 18, 2003
    Assignee: Beiersdorf AG
    Inventors: Andreas Bleckmann, Rainer Kröpke, Günther Schneider
  • Patent number: 6620420
    Abstract: Cosmetic or dermatological gel creams of the oil-in-water type, comprising (i) up to 90% by weight of a water phase, (ii) up to 20% by weight of a lipid phase, based on the total weight of the preparations, (iii) up to 5% by weight of one or more emulsifiers, (iv) also comprising up to 5% by weight of one or more ammonium acryloyldimethyltaurates/vinylpyrrolidone copolymers.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 16, 2003
    Assignee: Beiersdorf AG
    Inventors: Ghita Lanzendörfer, Jens Nielsen, Birgit Hargens, Rainer Kröpke, Heidi Riedel, Stephanie von Thaden
  • Publication number: 20030147928
    Abstract: The present invention concerns antipruritic cosmetic and dermatological preparations that contain one or more O/W emulsifiers, optionally one or more co-emulsifiers, polidocanol and essential oil. Use of the preparation that is the subject of the present invention has been shown to have an immediate and long-lasting antipruritic effect.
    Type: Application
    Filed: June 14, 2002
    Publication date: August 7, 2003
    Applicant: Beiersdorf AG
    Inventors: Dagmar Zelle, Alexander Filbry, Rainer Kroepke
  • Patent number: 6391319
    Abstract: Cosmetic and dermatological emulsions having at least one aqueous phase, comprising (a) an effective amount of one or more interface-active substances, selected from the group consisting of alkyl glucosides, which are characterized by the structural formula  in which R is a branched or unbranched alkyl radical having from 4 to 24 carbon atoms, (b) where in at least one of the aqueous phases one or more electrolytes is present in dissolved form, the ionic strength of the aqueous phases in which the electrolyte(s) is/are present in dissolved form being at least 0.075 mol/l, (c) and where {overscore (DP)} is an average degree of glucosylation of up to 2.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: May 21, 2002
    Assignees: Beiersdorf AG, Th. Goldschmidt AG
    Inventors: Rainer Kröpke, Anja Lührs, Anja Müller, Jens Nielsen, Andrea Bungard, Burghard Grüning, Klaus Jenni
  • Patent number: 6180090
    Abstract: Use of polysaccharides for increasing the light protection factor of cosmetic or dermatological preparations which comprise at least one customary UV filter substance.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: January 30, 2001
    Assignee: Beiersdorf AG
    Inventors: Heinrich Gers-Barlag, Rainer Kröpke, Oliver Scheel, Jens Nielsen