Patents by Inventor Leonhard Zastrow

Leonhard Zastrow 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: 6517818
    Abstract: The invention relates to a lip or care stick which contains vitamins and which is used for cosmetic applications. The stick contains an outer complex comprised of a cellulose derivative having a particle size ranging from 0.5 to 100 &mgr;m, and is comprised of a phospholipid and of an &agr;-tocopheral ester. The proportion of the complex is equal to 0.5 and 40 wt. %, with regard to the total mass. The stick also contains cosmetically conventional fats, waxes and additive which have a proportion ranging from 99.5 to 60 wt. % &agr;-tocopheral is stabilized with regard to UV-filters, can also be dissolved in the form of the complex by moisture and can be absorbed and processed as a vitamin by the body.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: February 11, 2003
    Assignee: Coty B.V.
    Inventors: Karin Golz-Berner, Leonhard Zastrow, Benoit Joly
  • Publication number: 20020164362
    Abstract: The invention relates to cosmetic emulsion or a gel that contains shellac. In accordance with the invention, a shellac-containing cosmetic product is produced which contains shellac in the aqueous phase. The proportion of pure shellac lies between 0.1 and 20 wt. % in an O/W emulsion; between 0.1 and 15 wt % in a W/O emulsion; and between 0.1 an 10 wt % in a hydrogel. Between 1 and 20 wt. % of other cosmetically active components or other supporting materials are contained in the oil phase or the aqueous phase, or in both phases. The invention also relates to a method for producing the cosmetic product. In this method, in order to produce the aqueous shellac solution or dispersion that is to be used, 0.1-3 wt. % of a water-soluble film former and 0.1-1 wt. % of an acid-resistant gel former with a pH of 2-4.2 are added.
    Type: Application
    Filed: February 21, 2002
    Publication date: November 7, 2002
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6426080
    Abstract: The disclosed cosmetic preparation of active substances protects the skin in a particularly effective way against free radical aggression, both alone and in combination with other active substances. The preparation consists of a Quebraco blanco bark extract containing at least 90 wt. % proanthocyanidin oligomers, a silkworm extract containing the peptide cecropin, amino acids and a vitamin mixture, a non-ionic, cationic or anionic hydrogel, phospholipids and water, and may also contain further active substances such as vitamin derivatives and plant extracts of acerola, sea weed, citrus, bitter orange, cherry, papaya, tea, coffee beans, Mimosa tenuiflora and angelica. The preparations have protection factors against free radicals of up to 10000, and the cosmetic compositions containing these preparations have protection factors of between 40 and 200, depending on their proportion of the preparations.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: July 30, 2002
    Assignee: Coty, B.V.
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6403062
    Abstract: The invention relates to a perfume composition which, at the same time, has a tanning effect or both a sun-block and tanning effect. According to the invention, the perfume composition having a tanning effect or both a sun-block and tanning effect is comprised of a clear hydroalcoholic solution. Said solution contains an alcohol-soluble, organic sunscreen filter in a proportion of 0.05 to 12 wt. %; dihydroxyacetone in a proportion of 0.5 to 10 wt. %; one or more monovalent alcohols with 3 to 5 carbon atoms in a proportion of 30 to 85 wt. %; one or more polyvalent alcohols with 3 to 5 carbon atoms in a proportion of 0.5 to 15 wt %; perfume oil in a proportion of 1 to 20 wt. %; and water in a proportion of 3 to 67.95 wt. %, hereby the proportions refer each time to the total composition.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: June 11, 2002
    Assignee: Coty B.V.
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6309627
    Abstract: The invention relates to cosmetic compositions containing agglomerates with particular particle sizes. The compositions are characterized in that they contain spherical non-porous SiO2 particles with a particle size of 0.05-1.5 &mgr;m, and other inorganic particle-shaped materials with spherical structure. The spherical SiO2 and other inorganic materials form defined agglomerates with a particle size of 0.06 &mgr;m to 5 &mgr;m. The proportion of agglomerates in the cosmetic composition is between 0.1 and 30% wt. The aggregate-containing dispersions are produced by introducing the spherical SiO2 step by step and in special conditions. Formulations produced with these aggregates are characterized by particularly stable and high sunscreen factors.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: October 30, 2001
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6302950
    Abstract: The invention relates to an aqueous solution or dispersion with high shellac content. The aqueous shellac solution or dispersion is characterized in that it has a pH value of 2 to 4.2, and contains: 1 to 60% wt. shellac; 0.1 to 3% wt. of at least one water-soluble film former; 0.1 to 1% wt. of at least acid-resistant gel former; and water bringing the total to 100% wt. In accordance with the invention, the solution is produced by the following method: particle-shaped shellac is added to an aqueous solution and homogenized by stirring at 10 to 1500 rev/min., at a temperature of 5 to 20° C. The aqueous solution has a pH value of 2 to 4.2 and contains at least one water-soluble film former and at least one acid-resistant gel former. The shellac solution or dispersion can be used in the paint and varnish industry, the food industry and in cosmetics.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: October 16, 2001
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6245342
    Abstract: A cosmetic preparation contains peptide derivatives from &agr;-MSH, as well as other active components. A cosmetic product has the property of activating the melanogenesis and being an anti-inflammatory and acting more efficiently. The synergetically active preparation also includes a combination of a peptide derivative corresponding to the formula (Lip)X-His-Phe-Arg-Y in a ratio of 0.05 mg to 2.5 mg of a pure peptide derivative per kg of the total mass, while the peptide derivative is mixed with xanthine in a ratio of 0.5 to 2 mol per 100 mol of peptide. Also there is at least 0.5 wt % of a mixture of enzymes and vitamins, containing at least 150 U/ml of superoxide dismutase. Also present are auxiliary agents and carrier agents in a ratio of 65 to 99.5 wt %, and possibly other active components.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: June 12, 2001
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz-Berner, Leonhard Zastrow, Nouha Domloge
  • Patent number: 6221372
    Abstract: The invention relates to a cosmetic cleansing and skin care preparation which is particularly suitable for extremely greasy pubertal skin and exhibits very good sebostatic effectiveness. The preparation contains 0.25-5 wt. % of a combination comprising 5-40 wt. % of an alga laminaria saccharina extract; 10-60 wt. % of lilium candidum root extract; 10-50 wt. % glycyrrehetinic acid as a natural extract of glycyrrhiza glabra. The preparation also contains 99.75 to 95 wt. % cosmetic auxiliary agents and carriers, optionally mixed with additional active substances.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 24, 2001
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6106847
    Abstract: The invention relates to a stable multiple phase emulsion of the O.sub.1 /W/O.sub.2 type with high proportions of the primary O.sub.1 /W emulsion. The new emulsions have an emulsifier-free primary oil-in-water phase consisting of a viscoplastic aqueous gel containing the finely distributed inner oil droplets together with a gelling agent, wherein the thixotropic primary oil-in-water phase has a yield point in the range from 20 to 100 Pa and a plastic viscosity of 0.01 to 0.1 Pa.multidot.s and contains at least one lipophilic agent in the primary oil; and a secondary oil phase in which the primary oil-in-water phase is present together with a lipophilic emulsifier; and wherein the proportion of the inner oily phase is from 10 to 35 % by weight relative to the total weight of the emulsion. The higher proportions of the inner oily phase render possible higher proportions of organic sun protection agents with simultaneous avoidance of skin irritations.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: August 22, 2000
    Assignee: Lancaster Group GmbH
    Inventors: Louis Ferrero, Karin Golz, Leonhard Zastrow, Klaus Stanzl
  • Patent number: 6036969
    Abstract: There are a process for evaluating beforehand a self-tanning composition in reference to different skin types, and a test kit to implement the process. A cosmetic self-tanning medium containing dihydroxyacetone is thinly rubbed on at least one test field, and the resulting tan on the test field is visually evaluated after 5 seconds to 5 minutes. The test field has at least one substance selected from the group of amino acids Gly, Ala, Val, Leu, Ile, Ser, Thr, Cys, Met, Asn, Lys, Asp, Gln, Glu, Phe, Tyr, Trp, His, Pro and the purines adenine, guanine, xanthine and hypoxanthine and mixtures of individual compounds of these chemicals.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: March 14, 2000
    Assignee: Coty B. V.
    Inventors: Karin Golz-Berner, Leonhard Zastrow
  • Patent number: 6007796
    Abstract: The invention concerns a cosmetic self-tanning agent based on dihyroxyacetone and having a sunscreen effect. The object of the invention is to prepare an agent in which the self-tanning effect occurs shortly after application and over a long period of time, and in which a plurality of color shades can be obtained without additional color components. According to the invention, the agent contains: specific portions of one or a plurality of UV filters selected from the group comprising octylsalicylate, octylmethoxycinnamate and benzophenone-3 and their mixtures; dihydroxyacetone (DHA) in a liposomal carrier system and additionally unencapsulated DHA; an antioxidant selected from the group comprising tocopherol, ascorbic acid, calendula extract and a mixture thereof; a moisturizer selected from the group comprising aloe vera, phospholipids, phospholipid mixtures, sodium hyaluronate, glycerol and mixtures thereof; and cosmetic carrier substances and additives.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: December 28, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Anette Menzel, Ralph Macchio, Klaus Stanzl, Leonhard Zastrow
  • Patent number: 5993857
    Abstract: A cosmetic skin cleanser based on natural active ingredients is disclosed. The cleanser comprises an aqueous non-oily suspension of microspheres of a polyoxymethlyene urea containing a natural liquid vegetable oil, and agents based on natural substances for moisturizing the skin. The agents could be aloe vera gel, jojoba oil, cetaryl glucosides, or a mixture of sarcosine, wheat amino acids and palmitic acid, and mixtures thereof, plus propylene glycol as an additional ingredient. The cleanser also includes one or more natural emulsifiers, natural cleansing substances and other excipients and vehicles.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: November 30, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Anette Menzel, Ralph Macchio, Klaus Stanzl, Leonhard Zastrow
  • Patent number: 5976510
    Abstract: A new cosmetic product combines tanning, sunscreen, moisturizing and water-repellant properties in a stable formulation. The product is an O/W emulsion which includes from 5% to 14% by weight of inorganic pigments treated with perfluoroalkyl phosphates, in which the pigments are selected from the group consisting of colored iron oxides, titanium dioxide and mixtures thereof. There are dispersants selected from the group consisting of at least (b1) cetyl dimethicone copolyol and (b2) cetyl dimethicone which are present in the range of 2% to 10% by weight, with the ratio of (b1) to (b2) in the range from 15-3 to 40-8, and further known carrier and auxiliary agents as well as further dispersants if required, in which the share of moisturizing additives is less than 4% by weight.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: November 2, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Domnica Cernasov, Ralph Maccio, Klaus Stanzl, Leonhard Zastrow, Rupali Kulkarni
  • Patent number: 5961988
    Abstract: The invention relates to a cosmetic and dermatological preparation for treating sensitive tissue, wounds and hair. The preparation contains (a1) magnetically hard particles such as barium or strontium hexaferrite single crystals, samariumcobalt particles (SmCo) and neodymium-iron-boron particles (Nd.sub.2 Fe.sub.14 B), each with a particle size in the range of 80 to 550 nm, and with a coercive field strength of the particles in the range of 1,000 to 20,000 Oerstedt; or (a2) particles according to (a1), encapsulated in aqueous liposomes or asymmetrical lamellar aggregates, where the aggregates consist of fluorocarbons and natural phospholipids with a phosphatidylcholine content of 30 to 99 wt %; and separately in addition to (a1) or (a2) or mixtures thereof, it also contains asymmetrical lamellar aggregates without encapsulated particles which are loaded with oxygen to the saturation limit. In addition, it also contains excipients and optionally other cosmetic or pharmacological active ingredients.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: October 5, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Leonhard Zastrow, Karin Golz-Berner, Doucet Olivier
  • Patent number: 5951967
    Abstract: A multi-phase sunscreen agent, characterized by at least two phases that are liquid to pasty or gelatinous and separate from each other spontaneously within seconds to less than ten minutes after a brief and gentle mixing process lasting less than one minute without any essential application of force, where at least one phase contains a UV filter.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: September 14, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz, Leonhard Zastrow, Klaus Stanzl, Jacques Gerbron, Louis Ferrero
  • Patent number: 5919490
    Abstract: A preparation for stimulating the blood circulation of the skin comprising a dispersion containing a proportion of finely divided magnetically hard single-domain particles in the dispersion being in the range from 0.01% to 70% by weight, based on the total weight of the dispersion; these particles having a strong coercive field and being in the range 600 to 1200 nm; and the magnetically hard single-domain particles are selected from the group consisting of barium hexaferrite, strontium hexaferrite, undoped barium hexaferrite, undoped strontium hexaferrite, and the mixtures thereof; and the balance up to 100% by weight of a cosmetic or pharmaceutical excipient carrier substance or a pharmaceutical additive, based on the total weight of the dispersion.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: July 6, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Leonhard Zastrow, Dagmar Hulsenberg, Karin Golz, Klaus Stanzl
  • Patent number: 5916577
    Abstract: The invention concerns cosmetic agents with condensates of plant and animal decomposition products, which can be used in cosmetic body care and cleansing preparations and which, in addition to the emulsifying effect, have essential skin-care properties. The object of the invention is to prepare cosmetic products from plant and animal starting materials, said products having substantial portions of original biological structures but being modified to such an extent that they are cosmetically acceptable owing to their neutral smell and pale color. According to the invention, the cosmetic agent is a product of a direct and mild (20 to 55.degree. C.; pH 7.5 to 8.5) decomposition of a biological starting material in an aqueous medium, subsequent condensation with a sub-stoechiometric amount of a C.sub.10 to C.sub.20 fatty acid halide or mixture and optionally subsequent etherification or esterification of the condensation product.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: June 29, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz, Leonhard Zastrow, Klaus Stanzl, Ulrich Klugel, Gunter Westphal, Leander Schobel
  • Patent number: 5885558
    Abstract: The invention concerns a sun-protection preparation with an increased light-protection factor, consisting of (A) a fine-particle, crosslinked poly(methylsiloxane) with a particle size ranging from 1 to 10 .mu.m, the poly(methylsiloxane) having given further parameters, (B) octyldodecylneopentanoate, (C) formulation aids, and (D) additives. The ratio of (A) to (B) ranges from 1:2 to 10, and the portion of (A) and (B) ranges from 3 to 12 wt %, relative to the total composition.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: March 23, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Klaus Stanzl, Leonhard Zastrow, Rupali Kulkarni, Domnica Cernasov
  • Patent number: 5885564
    Abstract: A composition contains certain nutrients, active and protective substances, as well as an oxygen carrier, along with a process for preparing this composition and its use. The composition provides skin care preparation with a high oxygen content which also contain further nutrients, active and/or protective substances. The new functional oxygenated composition contains (a) phospholipids and oxygen-loaded fluorocarbon or fluorocarbon mixtures. The proportion of fluorocarbon lies in the 0.2 to 100% by weight/volume range. The lipid fraction contains 30 to 99% by weight phosphatidylcholine in the form of asymmetric lamellar aggregates. The composition also contains (b) a product obtained by gentle disintegration of suspensions or dispersions of cells of plant substances, bacteria or yeasts by ultrasonic and/or high-pressure homogenization under up to 25 MPa; and (c) a cosmetic or dermatological carrier suitable for use on the skin.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: March 23, 1999
    Assignee: Lancaster Group GmbH
    Inventors: Leonhard Zastrow, Karin Golz, Klaus Stanzl
  • Patent number: 5800835
    Abstract: The invention relates to a preparation for improving the blood supply. The problem with prior art preparations or processes resides in the fact that soft magnetic components had to be introduced into the body in capsule form or a magnetic field had to be applied after the application of demagnetized particles to the skin. The purpose of the invention is to provide a novel preparation for improving the blood supply in which special hard magnetic particles are used. According to the invention, the preparation for improving the blood supply consists of a pharmaceutically or cosmetically acceptable medium and possibly further additives containing finely distributed hard magnetic single-grade particles with a high coercitive field intensity and grain sizes in the range of 600 to 1200 nm. Dispersions of this preparation exhibit no aggregation of the hard magnetic particles. The preferred use is in the cosmetic and dermatological field.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: September 1, 1998
    Assignee: Lancaster Group GmbH
    Inventors: Leonhard Zastrow, Dagmar Hulsenberg, Karin Golz, Klaus Stanzl