Patents by Inventor Christian Kropf

Christian Kropf 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).

  • Publication number: 20100204176
    Abstract: Cosmetic composition comprising at least one compound from advanced glycation end products (‘AGEs’) and/or precursors thereof as an agent for skin treatment, especially for protection and/or care of the skin. The present invention further provides a cosmetic composition comprising at least one compound from the group of the AGEs and/or precursors thereof, wherein the AGEs are prepared by reacting sugars with the amino acids lysine and/or arginine.
    Type: Application
    Filed: January 7, 2010
    Publication date: August 12, 2010
    Inventors: Ursula Huchel, Christian Kropf, Thomas Welss, Melanie Giesen, Andreas Bock
  • Publication number: 20080160091
    Abstract: An oral and dental hygiene product is comprised of a composite material comprising calcium salts which are slightly soluble in water, in the form of nanoparticulate primary particles having a length of from 5 to 150 nm and a cross section of from 2 to 50 nm and protein components selected from the group consisting of proteins, protein hydrolysates and protein hydrolysate derivatives, and 0.1 to 9% by weight of a cleaning agent based on the total weight of the product.
    Type: Application
    Filed: September 28, 2007
    Publication date: July 3, 2008
    Applicant: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN
    Inventors: Christian KROPF, Marcel ROTH, Ulrike BRUENINGHAUS, Stefan MUELLNER, Albrecht WEISS, Ulrich SCHOERKEN, Lothar KINTRUP, Burkhard ESCHEN, Amerigo PASTURA, Peter WUELKNITZ, Ruediger KNIEP, Hans LASKA, Michael MEINDERS, Hans DOLHAINE
  • Patent number: 7348029
    Abstract: The present invention relates to a surface-modified nanoscale zinc oxide, where the surface modification involves coating with an oligo- or polyethylene glycol acid. This surface-modified zinc oxide is characterized in that it forms stable dispersions in a liquid medium. In addition, the present invention relates to a process for the production of surface-modified zinc oxide, and also to a process for the production of nanoscale zinc oxide dispersions.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: March 25, 2008
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rainer Kliss, Ralf Elsässer, Melita Heller, Christian Umbreit, Horst Hahn, Christian Kropf, Mete Berber, Victor Bulto Carulla
  • Publication number: 20070154411
    Abstract: The invention relates to oral and dental hygiene products comprising a) a composite material consisting of calcium salts which are slightly soluble in water, in the form of nanoparticulate primary particles having a length of from 5 to 150 nm and a cross section of from 2 to 50 nm and protein components selected from proteins, protein hydrolysates and protein hydrolysate derivatives, and b) 10 to 35% by weight of a cleaning agent mixture, the cleaning agent mixture comprising from 0.01 to 5% by weight of aluminum oxide polishing agent. The oral and dental hygiene products ensure a thorough cleaning of the teeth with simultaneous and long-lasting remineralization of the tooth surface.
    Type: Application
    Filed: August 24, 2004
    Publication date: July 5, 2007
    Inventors: Adolf-Peter Barth, Christian Kropf, Tilo Poth
  • Publication number: 20070128130
    Abstract: A dental adhesive film that, when applied to dental material, assists in the remineralization of dental material that exhibits damage from caries, lesions in the enamel and open dentine channels. The active compound in the dental adhesive film is a finely divided, poorly soluble calcium salt of phosphates, fluorides, fluorophosphates and mixtures thereof. Optionally present may be hydroxyl, carbonate or chloride ions.
    Type: Application
    Filed: January 4, 2007
    Publication date: June 7, 2007
    Inventors: Christian Kropf, Peter Wuelknitz
  • Publication number: 20060222602
    Abstract: An oral and dental hygiene product comprising a) a composite material containing poorly water-soluble calcium salts in the form of nanoparticulate primary particles which are between 5 and 150 nm long and have a cross-section of between 2 and 50 nm, and protein constituents selected from proteins, protein hydrolysates and protein hydrolysate derivatives, and b) between 0.1 and 9 wt. % of a cleaning agent, in relation to the total weight of the product. The inventive oral and dental hygiene product ensures an effective and long-lasting remineralization of the surface of the tooth, and a protective cleaning action of the cleaning or polishing agent.
    Type: Application
    Filed: March 1, 2006
    Publication date: October 5, 2006
    Inventors: Adolf-Peter Barth, Christian Kropf, Tilo Poth
  • Publication number: 20050234416
    Abstract: Hygiene products such as diapers, tampons, pantyliners and the like are produced using body-compatible substances in the form of nanoparticles having surfaces that have been chemically and/or physically modified. The substances may be oxides, oxide hydrates, hydroxides, halogenides, phosphates, sulfides, nitrides or carbides of aluminum, silicon, alkali metals, alkaline earth metals, or secondary group elements. The surface modification may be carried out using organic compounds such as carboxylic acids, carboxylic acid derivatives, amino acids, hydroxycarboxylic acids, sugar acids, polyglycolic acids, ether carboxylic acids, alkyl halides, or silanes.
    Type: Application
    Filed: June 17, 2003
    Publication date: October 20, 2005
    Inventors: Christian Kropf, Claudia Hundeiker, Melita Heller, Christine Wild, Raymond Mathis
  • Publication number: 20050228096
    Abstract: An adhesive composition and the use thereof to produce barrier-effect composite films. The adhesive composition contains polymer binders and fillers having a platelet-like crystallite structure with an aspect ratio of >100. The composite films produced with this adhesive exhibit barrier characteristics against the migration of oxygen, flavors and water vapor. These films are useful for packaging foods and medicaments.
    Type: Application
    Filed: September 19, 2001
    Publication date: October 13, 2005
    Applicant: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Christian Kirsten, Claudia Meckel-Jonas, Ulrike Brueninghaus, Christian Kropf
  • Publication number: 20050048010
    Abstract: The present invention relates to a surface-modified nanoscale zinc oxide, where the surface modification involves coating with an oligo- or polyethylene glycol acid. This surface-modified zinc oxide is characterized in that it forms stable dispersions in a liquid medium. In addition, the present invention relates to a process for the production of surface-modified zinc oxide, and also to a process for the production of nanoscale zinc oxide dispersions.
    Type: Application
    Filed: June 21, 2004
    Publication date: March 3, 2005
    Inventors: Rainer Kliss, Ralf Elsasser, Melita Heller, Christian Umbreit, Horst Hahn, Christian Kropf, Mete Berber, Victor Carulla
  • Patent number: 6858214
    Abstract: The invention relates to the use of nanoscalar water-soluble ?-(1,3) glucans, which are essentially free from ?-(1,6) links and have particle diameters ranging from 10 to 300 nm for producing cosmetic and/or pharmaceutical preparations. When applied topically, the especially fine dispersion of the particles, compared to prior art glucans, facilitates their rapid penetration of both the stratum corneum of the skin and the keratin fibres of the hair.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: February 22, 2005
    Assignee: Biotec ASA
    Inventors: Christian Kropf, Ute Griesbach, Bernd Fabry, Rolf E. Engstad
  • Publication number: 20040108220
    Abstract: A process for the production of amorphous, crystalline, or mixed oxides of metals having mean particle diameters of 1 to 500 nm, by providing an electrolysis cell having a cathode in a cathode half-cell and an anode in an anode half cell, providing in the electrolysis cell a solution comprising ions of a metal or metals from which the oxide particles are to be formed dissolved in an organic electrolyte, and electrochemically reducing the metal ions at the cathode in the presence of an oxidizing agent while impeding or preventing passage of halogens from the anode half cell to the cathode half cell, to form the oxide or oxides.
    Type: Application
    Filed: July 30, 2003
    Publication date: June 10, 2004
    Inventors: Hans-Oskar Stephan, Christian Kropf, Rolf Hempelmann, Andrea Dierstein, Harald Natter
  • Publication number: 20040033270
    Abstract: Hygiene products such as diapers, tampons, pantyliners and the like are produced using zinc oxide in the form of nanoparticles having surfaces that have been chemically and/or physically modified. The surface modification may be carried out using organic compounds such as carboxylic acids, carboxylic acid derivatives, amino acids, hydroxycarboxylic acids, sugar acids, polyglycolic acids, ether carboxylic acids, alkyl halides, or silanes.
    Type: Application
    Filed: June 17, 2003
    Publication date: February 19, 2004
    Inventors: Christian Kropf, Claudia Hundeiker, Melita Heller, Christine Wild
  • Publication number: 20030219388
    Abstract: A dental adhesive film that, when applied to dental material, assists in the remineralization of dental material that exhibit damage from caries, lesions in the enamel and open dentine channels. The active compound in the dental adhesive film is a finely divided, poorly soluble calcium salt of phosphates, fluorides, fluorophosphates and mixtures thereof. Optionally present may be hydroxyl, carbonate or chloride ions.
    Type: Application
    Filed: June 19, 2003
    Publication date: November 27, 2003
    Inventors: Christian Kropf, Peter Wuelknitz
  • Publication number: 20030175217
    Abstract: The invention relates to thixotropic oral and dental care agents containing a content of one or more nanoparticular inorganic compounds selected from the group consisting of metal oxides, metal oxide hydrates, metal hydroxides, metal carbonates, metal phosphates and of metal silicates. The agents are suited, for example, as liquid-dosable or sprayable mouthwashes.
    Type: Application
    Filed: April 28, 2003
    Publication date: September 18, 2003
    Inventors: Christian Kropf, Ulrike Brueninghaus
  • Publication number: 20030165440
    Abstract: The invention relates to compositions for treating tooth and/or bone tissue that contain calcium phosphates, calcium fluorides or calcium fluorophosphates, all of which being poorly soluble in water, and polyelectrolytes. The compositions can be cured and are suited for the smoothing, the reconstruction, and the remineralizing treatment of tooth and bone tissue, especially for eliminating microroughnesses.
    Type: Application
    Filed: April 14, 2003
    Publication date: September 4, 2003
    Inventors: Marcel Roth, Christian Kropf, Peter Wuelknitz, Lothar Kintrup, Hans Dolhaine, Hans-Juergen Schwark, Michael Meinders, Hans Laska
  • Patent number: 6368577
    Abstract: A cosmetic or pharmaceutical composition used for blocking the penetration of ultraviolet radiation, the composition containing nanoscale organic UV filters having a mean diameter of from 10 to 300 nm.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: April 9, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Christian Kropf, Hans Dolhaine, Thomas Foerster, Bernd Fabry
  • Patent number: 6352737
    Abstract: The invention relates to the use of nanoscale sterols and/or sterol esters with particle diameters of 10 to 300 nm as food additives and as active substances for the production of hypocholesterolemic agents. The particular fineness of the particles promotes more rapid absorption by the blood serum after oral ingestion by comparison with conventional sterols and sterol esters.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: March 5, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Hans Dolhaine, Christian Kropf, Peter Christophliemk, Bernd Fabry, Manfred Biermann, Christine Schroeder
  • Patent number: 6316030
    Abstract: A composition containing an effective amount of nanoparticles selected from the group consisting of nanoscale sterols, nanoscale sterol esters, and mixtures thereof.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: November 13, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Christian Kropf, Thomas Foerster, Bernd Fabry, Martina Hollenbrock