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: 5716599
    Abstract: The invention involves a cosmetic preparation containing kaolin which may be employed as a mask, lotion, gel or cream with a non-sticky, non-plasticized consistency and with a content of white kaolin with a high proportion of kaolinite and spherical inorganic particles of a particle size of less than 5 .mu.m, with a proportion of spherical particles in the kaolin mixture of 0.5 to 10% by weight as well as a cosmetic skin care composition, in which the proportion of the kaolin/spherical particle mixture falls within the range of over 2 to 65% by weight of the composition as a whole. The viscosity of the composition with the proportion of kaolin/spherical particles is around 2000 to over 15,000 cps higher than a similar composition with kaolin only and without spherical particles, with the difference in viscosity increasing with the proportion of kaolin/spherical particles.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: February 10, 1998
    Assignee: Lancaster Group GmbH
    Inventors: Karin Golz, Leonhard Zastrow, Klaus Stanzl, Alfred Braunagel
  • Patent number: 5686102
    Abstract: The invention relates to pharmaceutical compositions which are incorporated into the skin with the aid of novel microaggregates as carriers. The object of the invention is to make available pharmacological active compounds in a biologically and chemically inert carrier for therapeutic and diagnostic administration to the skin or for systemic administration, and in this way to make deeper penetration into the skin or transdermal transport possible. According to the invention, this is effected by means of a pharmaceutical composition for topical administration, which contains asymmetric lamellar aggregates, consisting of phospholipids, pharmacological active compounds and fluorocarbons or fluorocarbon mixtures, the proportion of fluorocarbon being in the range from 1 to 100% weight/volume, in a pharmaceutical excipient which is suitable for topical administration.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: November 11, 1997
    Assignee: Lancaster Group AG
    Inventors: Udo Gross, Joachim Roding, Klaus Stanzl, Leonhard Zastrow
  • Patent number: 5667772
    Abstract: The invention relates to preparations for the improved release of oxygen into the skin and to the use of same as cosmetics/dermatics. The preparations according to this invention contain, as the essential component, fluorocarbon emulsions consisting of nonionic emulsifiers and an oxygen-loaded fluorocarbon or fluorocarbon mixture, the fluorocarbon content being in the range from 0.05 to 100% by weight/volume. They are prepared by emulsifying the corresponding components and incorporating the resulting emulsion in known carriers for, for example, ointments, creams, lotions, waters, alcoholic extracts, pastes, powders, gels, tinctures or masks.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: September 16, 1997
    Assignee: Lancaster Group AG
    Inventors: Leonhard Zastrow, Klaus Stanzl, Joachim Roding
  • Patent number: 5643601
    Abstract: The invention relates to a cosmetic for assisting the transport of oxygen in the skin, a process for its preparation and the use thereof. The problem with the known cosmetics is the inadequate oxygen supply to the skin and the adjoining tissue. The object of the invention is therefore to get through the horny layer of the skin and the epidermis by penetration processes in order to increase the oxygen concentration in the dermal area and adjoining tissue and to activate metabolic processes. According to the invention, this is effected by a cosmetic containing asymmetric lamellar aggregates, consisting of phospholipids and oxygen-laden fluorocarbon or fluorocarbon mixture, the amount of fluorocarbon being in the range from 0.2 to 100% weight/volume, in a carrier suitable for dermatological use. Preparation is effected by emulsification of the corresponding constituents, and use in ointments, creams, lotions, waters, alcoholic extracts, pastes, powders, gels, tinctures or on dressings and plasters or in a spray.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: July 1, 1997
    Assignee: Lancaster Group AG
    Inventors: Udo Gross, Joachim Roding, Klaus Stanzl, Leonhard Zastrow
  • Patent number: 5641509
    Abstract: The invention relates to a preparation for topical use, having light protection properties and in a special application form. In the known light protection agents containing the naturally occurring active compound melanin, the problem is inadequate transport of the melanin to its site of action. According to the invention, this problem is solved by a preparation for topical use which is characterised in that it contains melanin, dissolved or dispersed in one or more fluorocarbons, which are present as asymmetric lamellar phospholipid aggregates in an aqueous system together with a phospholipid, with a particle size of the aggregates in the range from 200 to 3000 nm.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: June 24, 1997
    Assignee: Lancaster Group AG
    Inventors: Udo Gross, Joachim Roding, Klaus Stanzl, Leonhard Zastrow
  • Patent number: 5637318
    Abstract: The invention relates to a dermatological agent for assisting the transport of oxygen in the skin, a process for its preparation and the use thereof. The problem with the known dermatological agents is the inadequate supply of oxygen to the skin and the adjoining tissue. The object of the invention is therefore to get through the horny layer of the skin and the epidermis by penetration processes in order to increase the oxygen concentration in the dermal area and adjoining tissue and to activate metabolic processes. According to the invention, this is effected by means of a dermatological agent containing asymmetric lamellar aggregates, consisting of phospholipids and oxygen-laden fluorocarbon or fluorocarbon mixture, the amount of fluorocarbon being in the range from 0.2 to 100% weight/volume, in a carrier which is suitable for dermatological use.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: June 10, 1997
    Assignee: Lancaster Group AG
    Inventors: Udo Gross, Joachim Roding, Klaus Stanzl, Leonhard Zastrow
  • Patent number: 5629185
    Abstract: A process capable of being continuously carried out, for disintegrating cell material in the form of dispersions or suspensions in water for the purpose of obtaining cell constituent. Selected parameters permit avoidance of use of solid ultrasonication activators and the establishment of a particular geometry form for the acoustic irradiation container. The parameters include sonotrode immersion angle, length of immersion, ratio of extent of immersion of the sonotrode relative to the acoustic irradiation volume and the ratio of extent of immersion to the solid matter content of the medium to be sonicated.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: May 13, 1997
    Inventors: Klaus Stanzl, Leonhard Zastrow, Joachim Roding, Karin Golz