Patents by Inventor Helmut Schmidt

Helmut Schmidt 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).

  • Self-crosslinking compositions based on fluorine-containing polycondensates
    Patent number: 6630205
    Abstract: The invention relates to a method for coating a substrate according to which a self-crosslinking coating composition is produced on the basis of a) at least one hydrolysable silane with at least one nonhydrolysable substituent, said silane having one or more electrophilic groups X on at least one nonhydrolysable substitutent, b) at least one hydrolysable silane with at least one nonhydrolysable substituent, said silane having one or more nucleophilic groups Y on at least one nonhydrolysable substituent, c) at least one hydrolysable silane with at least one nonhydrolysable carbonic group that has an average of 2 to 30 fluorine atoms that are bound to one or more aliphatic carbon atoms that are separated from the silicon atom by at least two atoms.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: October 7, 2003
    Assignee: Institut für Neue Materialien gem. GmbH
    Inventors: Stefan Brueck, Christoph Lesniak, Hermann Schirra, Helmut Schmidt
  • Nanoscale particles having an iron oxide-containing core enveloped by at least two shells
    Publication number: 20030180370
    Abstract: The invention relates to nanoscale particles suited especially for use in tumor therapy by hyperthermia. Said particles comprise a (preferably superparamagnetic) iron oxide-containing core and at least two shells surrounding said core. The (innermost) shell adjoining the core is an envelope which comprises groups capable of forming cationic groups and is broken down by human or animal tissue at such a slow rate as to allow for association of the core surrounded by said envelope with the surface of cells and/or for absorption of said core into the inside of cells.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 25, 2003
    Applicant: Institut fur Neue Materialien gem. GmbH
    Inventors: Christoph Lesniak, Thomas Schiestel, Helmut Schmidt, Andreas Jordan
  • Nanostructured forms and layers and method for producing them using stable water-soluble precursors
    Patent number: 6620514
    Abstract: A process for preparing a composition for producing nanostructured mouldings and layers comprises contacting an aqueous and/or alcoholic sol of a compound of an element selected from silicon sand metals of the main groups and transition groups of the Periodic Table with species possessing hydrolysable alkoxy groups and comprising at least one organically modified alkoxysilane or a precondensate derived therefrom, under conditions which lead to (further) hydrolysis of the species, and subsequent removal of the alcohol formed and any alcohol already present originally. The process is characterized in that the alcohol is removed in an amount such that the residual alcohol content of the composition is not more than 20% by weight.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: September 16, 2003
    Assignee: Institut für Neue Materialien gem. GmbH
    Inventors: Ertugrul Arpac, Gerhard Jonschker, Hermann Schirra, Helmut Schmidt
  • Magnetic pigment
    Publication number: 20030135038
    Abstract: Magnetic particles with an outer glass surface being essentially poreless or having pores of a diameter of less then 10 nm as well as ferromagnetic particles with a glass surface are preferentially useful for the isolation of biological material from samples. They provide a quick and reliable purification.
    Type: Application
    Filed: July 23, 2002
    Publication date: July 17, 2003
    Applicant: Roche Diagnostics GmbH.
    Inventors: Jorg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lensniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Casement window
    Publication number: 20030126812
    Abstract: A casement window or door comprised of a glass unit and pultruded fiberglass lineals which are formed into a frame having a narrow sightline. The window is thermally and acoustically efficient.
    Type: Application
    Filed: May 2, 2002
    Publication date: July 10, 2003
    Inventors: Peter Folsom, Helmut Schmidt
  • Magnetic particles for purifying nucleic acids
    Publication number: 20030125542
    Abstract: Preparations of particles having a glass surface, wherein more than 75% by weight of these particles have a particle size between 0.5 &mgr;m and 15 &mgr;m and a glass surface which contains between 2 and 6 mole % zinc oxide, have proven to be particularly advantageous in processes for the purification of nucleic acids. This in particular results in an increased nucleic acid yield.
    Type: Application
    Filed: February 20, 2003
    Publication date: July 3, 2003
    Applicant: Roche Molecular Systems, Inc.
    Inventors: Herbert Harttig, Michael Riedling, Martin Mennig, Helmut Schmidt
  • Ir absorbing compositions
    Publication number: 20030122114
    Abstract: The invention relates to compositions containing transparent thermoplastic polymers and surface modified oxide particles having a particle size of less than 200 nm. The invention also relates to the production and use thereof, in addition to items produced from said compositions.
    Type: Application
    Filed: August 7, 2002
    Publication date: July 3, 2003
    Inventors: Martin Dobler, Werner Hoheisel, Helmut Schmidt, Ralph Nonninger, Martin Schichtel, Martin Jost
  • Connector having an inner displacement member
    Patent number: 6581906
    Abstract: The invention relates to a connector which has an inner displacement member. The flow is stopped by the connector, i.e. the connector is impervious, in a first position. In a second position of the displacement member, with a stop defining the position, flow apertures are released which release the flow into the flow carrying line.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: June 24, 2003
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Harald Pott, Helmut Schmidt
  • Method of producing homogeneous multicomponent dispersions and products derived from such dispersions
    Publication number: 20030109588
    Abstract: Homogeneous multicomponent dispersions in which at least two types of finely divided particles, having particle sizes differing by at least a factor of three between two of the types, are dispersed in a medium, are prepared by a process including:
    Type: Application
    Filed: December 5, 2002
    Publication date: June 12, 2003
    Inventors: Helmut Schmidt, Ruediger Nass
  • Process for producing shrinkage-matched ceramic composites
    Patent number: 6576182
    Abstract: A process for producing a composite, containing at least one shrinkage-matched ceramic layer, wherein a starting material for the ceramic layer(s) has shrinkage behavior on sintering which is matched to remaining layer(s), and which is selected such that the ceramic-forming constituent of the same contains at least one ceramic powder of a specific size, and which process entails joining the layers of the composite by sintering.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: June 10, 2003
    Assignee: Institut Fuer Neue Materialien gemeinnuetzige GmbH
    Inventors: Alberto Ravagni, Rüdiger Nass, Helmut Schmidt, Bernhard Walter
  • Nanoscale corundum powders, sintered compacts produced from these powders and method for producing the same
    Publication number: 20030098529
    Abstract: Nanoscale corundum powders are obtained by first producing an Al2O3 precursor by adding seed crystals to an aqueous solution of an aluminium compound and adding a base and then converting the Al2O3 precursor into corundum by calcination at a high temperature. Before the calcination, the salts that are present in addition to the Al2O3 precursor are separated off. The resulting product is calcined at temperatures of 700 to 975° C. and any fines that may be present are removed. The resulting corundum powders can be sintered at temperatures of ≦1200° C. to produce compacts or components of multiple layer systems.
    Type: Application
    Filed: December 23, 2002
    Publication date: May 29, 2003
    Inventors: Robert Drumm, Christian Goebbert, Kai Gossmann, Ralph Nonninger, Helmut Schmidt
  • Ir-absorbing compositions
    Publication number: 20030094600
    Abstract: The present invention provides compositions containing transparent thermoplastic polymer, surface-modified oxide particles with a particle size of less than 200 nm, and organic NIR absorbers. The compositions of the present invention may find use in reducing diathermancy in sheets, films, glazing systems and roofing systems which may be incorporated into automobiles and buildings.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 22, 2003
    Inventors: Martin Dbler, Werner Hoheisel, Helmut Schmidt, Ralph Nonninger, Martin Schichtel, Martin Jost
  • Process for preparing (cyclo)aliphatic isocyanates
    Publication number: 20030069441
    Abstract: The present invention relates to a novel process for preparing (cyclo)aliphatic diisocyanates and triisocyanates by phosgenation of (cyclo)aliphatic diamines and triamines in the gas phase by accelerating the flow of at least one of reactants in the region where the reactants are mixed.
    Type: Application
    Filed: July 3, 2002
    Publication date: April 10, 2003
    Inventors: Hans-Joachim Leimkuhler, Herbert Stutz, Helmut Schmidt
  • Magnetic particles for purifying nucleic acids
    Patent number: 6545143
    Abstract: Preparations of particles having a glass surface, wherein more than 75% by weight of these particles have a particle size between 0.5 &mgr;m and 15 &mgr;m and a glass surface which contains between 2 and 6 mole % zinc oxide, have proven to be particularly advantageous in processes for the purification of nucleic acids. This in particular results in an increased nucleic acid yield.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: April 8, 2003
    Assignee: Roche Diagnostics, GmbH
    Inventors: Herbert Harttig, Michael Riedling, Martin Mennig, Helmut Schmidt
  • Nanoscale particles having an iron oxide-containing core enveloped by at least two shells
    Patent number: 6541039
    Abstract: The invention relates to nanoscale particles suited especially for use in tumor therapy by hyperthermia. Said particles comprise a (preferably superparamagnetic) iron oxide-containing core and at least two shells surrounding said core. The (innermost) shell adjoining the core is an envelope which comprises groups capable of forming cationic groups and is broken down by human or animal tissue at such a slow rate as to allow for association of the core surrounded by said envelope with the surface of cells and/or for absorption of said core into the inside of cells.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: April 1, 2003
    Assignee: Institut für Neue Materialien gem. GmbH
    Inventors: Christoph Lesniak, Thomas Schiestel, Helmut Schmidt, Andreas Jordan
  • Substrate comprising a thick film consisting of an inorganic gel, glass, vitroceramic or ceramic material, a method for the production of the same and the use thereof
    Publication number: 20030059540
    Abstract: Process for producing substrates with a layer comprising an inorganic gel, glass, glass-ceramic or ceramic material, in which a coating composition comprising nanosize particles and water soluble organic flexibilizers is applied to the substrate and heat treated. Crack-free and transparent thick films can be obtained by means of the process. The coated substrates are particularly suitable for optical, optoelectronic, electronic, micromechanical or dirt-repellent components.
    Type: Application
    Filed: October 4, 2002
    Publication date: March 27, 2003
    Inventors: Anette Berni, Andreas Frantzen, Axel Kalleder, Martin Mennig, Navin Suyal, Helmut Schmidt
  • Powder-coated domestic appliances with a top coat based on epoxy silane
    Patent number: 6537672
    Abstract: The invention relates to domestic appliances bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based on hydrolysable silanes containing at least one non-hydrolysable substituent, the hydrolysable silanes having an epoxide group on at least one non-hydrolysable substituent; b) a curing catalyst selected from Lewis bases and alkoxides of titanium, zirconium or aluminium; c) nanoscale particulate inorganic solids having a particle size in the range from 1 to 100 nm; and d) at least one organic monomer, oligomer or polymer containing at least one epoxide group.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: March 25, 2003
    Assignees: Institut für Neue Materialien gem. GmbH, BSH Bosch und Siemens Hausgeräte GmbH
    Inventors: Carola Dittfurth, Stefan Sepeur, Ralf-Peter Winkler, Helmut Schmidt, Frank Joerdens, Gerhard Schmidmayer
  • Method for preparing suspensions and powders based in indium tin oxide and the use thereof
    Patent number: 6533966
    Abstract: Suspensions and powders based on indium tin oxide are prepared by a method in which indium tin oxide precursors are precipitated from solutions in one or more solvents in the presence of one or more surface-modifying components, the solvent(s) are removed from the precipitate, which is then calcined, one or more surface-modifying components and one or more solvents are added, the mixture is comminuted or dispersed to form a suspension, and the liquid components are separated from the suspension to give a powder. The powder may be converted into a moulding by a shaping process. The materials prepared by this method are especially suitable as coating materials for use in microelectronics and optoelectronics.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 18, 2003
    Assignee: Institut für Neue Materialien gem. GmbH
    Inventors: Ralph Nonninger, Christian Goebbert, Helmut Schmidt, Robert Drumm, Stefan Sepeur
  • Method for separating components from liquid and gaseous media with nanocomposites
    Publication number: 20030038083
    Abstract: Components are separated from liquid or gaseous media with the aid of a nanocomposite comprising nanoparticles in a matrix, wherein the liquid or gaseous medium is brought into contact with the nanocomposite in such a way that at least part of the components to be separated off is bound to the nanocomposite and the resulting laden nanocomposite is separated from the liquid or gaseous medium.
    Type: Application
    Filed: September 9, 2002
    Publication date: February 27, 2003
    Inventors: Thomas Schiestel, Thomas Mueller, Hermann Schirra, Helmut Schmidt
  • Powder-coated substrates with topcoat based on silanes containing epoxide groups
    Patent number: 6500534
    Abstract: The invention relates to powder-coated substrates bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based on hydrolyzable silanes containing at least one non-hydrolyzable substituent, the hydrolyzable silanes having an epoxide group on at least one non-hydrolyzable substituent; b) a curing catalyst selected from Lewis bases and alkoxides of titanium, zirconium or aluminium; c) nanoscale particulate inorganic solids having a particle size in the range from 1 to 100 nm; and d) at least one organic monomer, oligomer or polymer containing at least one epoxide group.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: December 31, 2002
    Assignee: Institut Für Neue Materialien gemeinnützige GmbH
    Inventors: Carola Dittfurth, Stefan Sepeur, Ralf-Peter Winkler, Helmut Schmidt