Patents by Inventor Wolfgang Ebert

Wolfgang Ebert 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).

  • Compositions containing polycarbonate
    Patent number: 6713181
    Abstract: A thermoplastic molding composition is disclosed. The composition that contains a polymer selected from the group consisting of a polycarbonate, a transparent polycarbonate-polyester-blend, a copolyestercarbonate and a transparent polyester and a compound of formula (I) and one or more compounds of formula (II) wherein a is 1 to 17, b is 0 to 16, c is 6 to 14, d is 3 to 7, e is 6 to 14, f is 3 to 7, g is 5 to 40 and a+b is 9 to 25 and n is 1 to 10, was found to be especially suitable for co-extrusion applications.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: March 30, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Gorny, Siegfried Anders, Wolfgang Nising, Wolfgang Ebert
  • Optical fiber
    Publication number: 20040057694
    Abstract: The invention relates to optical fibres comprising a core that contains a polycarbonate and a coating that consists of special polyacrylates or polymethacrylates and stabilizers. The invention also relates to a method for producing said optical fibres, to the use of the optical fibres for transmitting optical signals in means of transport and to means of transport containing said optical fibres. The stabilizers are selected from the group consisting of organic phosphites and organic sulphides.
    Type: Application
    Filed: August 25, 2003
    Publication date: March 25, 2004
    Inventors: Wolfgang Ebert, Hans-Josef Behrens, Heinz-Dieter Brandt, Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt, Thomas Follinger, Wilfried Haese
  • Polycarbonate optical fibre
    Publication number: 20040057693
    Abstract: Optical fibers suitable for transmission of optical signals and comprising a core that contains polycarbonate are disclosed. The polycarbonate is characterized in its low content of insoluble particles.
    Type: Application
    Filed: July 14, 2003
    Publication date: March 25, 2004
    Inventors: Wolfgang Ebert, Hans-Josef Behrens, Heniz-Dieter Brandt, Martina Brandt, Franziska Hanne Brandt, Inken Margarethe Brandt, Thomas Follinger, Wilfried Haese
  • Polycarbonate molding compounds with good demolding properties and molded bodied and semifinished products produced from the same
    Patent number: 6706797
    Abstract: A thermoplastic molding composition comprising polycarbonate resin having improved mold release properties is disclosed the composition contain polycarbonate resin and 0.005 to 5.0% relative to the weight of the composition of at least one hydrocarbon in the form of C15-600-methyl-branched alkane. The hydrocarbon is characterized in that the weight proportion of its branches is 5 to 30 percent relative to the weight of carbons in the alkane chain.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: March 16, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Ebert, Ralf Kaufmann, Christoph Schwemler, Wilfried Haese, Peter Fischer, Martin Döbler, Joachim Genz
  • Metal complexes that contain perfluoroalkyl, process for their production and their use in NMR diagnosis
    Publication number: 20030232012
    Abstract: The invention relates to new, monomeric, perfluoroalkyl-substituted metal complexes, processes for their production, and their use in diagnosis and therapy.
    Type: Application
    Filed: July 18, 2002
    Publication date: December 18, 2003
    Applicant: Schering AG
    Inventors: Johannes Platzek, Ulrich Niedballa, Bernd Raduchel, Wolfgang Schlecker, Hanns-Joachim Weinmann, Thomas Frenzel, Bernd Misselwitz, Wolfgang Ebert
  • Production and use of high molecular weight aliphatic polycarbonates
    Publication number: 20030204042
    Abstract: A process for the production of high molecular weight aliphatic polycarbonates is disclosed. The process entails a first stage wherein a low molecular weight aliphatic polycarbonate is prepared and a second stage where the low molecular weight aliphatic polycarbonate is condensed with diaryl carbonate in a melt transesterification process to form a high molecular weight aliphatic polycarbonate. The resulting high molecular weight aliphatic polycarbonate is suitable for the production of extrudates, films and molded articles.
    Type: Application
    Filed: April 22, 2003
    Publication date: October 30, 2003
    Inventors: Melanie Moethrath, Lothar Bunzel, Hans Deml, Wolfgang Ebert
  • Iron-containing nanoparticles with double coating and their use in diagnosis and therapy
    Publication number: 20030185757
    Abstract: The present invention relates to iron-containing nanoparticles having a modular structure, their production, and their use for diagnostic and therapeutic purposes.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 2, 2003
    Inventors: Mayk Kresse, Detlev Pfefferer, Ruediger Lawaczeck, Susanne Wagner, Wolfgang Ebert, Volker Elste, Wolfhard Semmler, Matthias Taupitz, Josef Gaida, Anja Herrmann, Monika Ebert, Udo Swiderski
  • Compositions containing polycarbonate
    Publication number: 20030162025
    Abstract: A thermoplastic molding composition is disclosed.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 28, 2003
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising, Wolfgang Ebert
  • Oligomeric bischlorocarbonic acid esters obtained from selected cycloaliphatic bisphenols and other bisphenols
    Patent number: 6590058
    Abstract: This invention relates to oligomeric bischloroformic acid esters which are obtainable, in a two-phase reaction, from selected cycloaliphatic bisphenols and other bisphenols by introducing phosgene.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: July 8, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Ebert, Burkhard Köhler, Yun Chen
  • Device and process for separating magnetic materials from pharmaceutical preparations, their starting or intermediate products, as well as agents that are produced with the aid of said device
    Publication number: 20030108613
    Abstract: The invention relates to a device for magnetic separation of pharmaceutical preparations, their starting or intermediate products that contain a separation space, in which a magnetic gradient field prevails and which has an inlet and an outlet, whereby the device is embodied in the form of an attachment filter for injection instruments or infusion instruments.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 12, 2003
    Applicant: Schering AG
    Inventors: Werner Weitschies, Thomas Rheinlander, Wolfgang Ebert, Bernard Better
  • Iron-containing nanoparticles with double coating and their use in diagnosis and therapy
    Patent number: 6576221
    Abstract: The present invention relates to iron-containing nanoparticles having a modular structure, their production, and their use for diagnostic and therapeutic purposes. The nanoparticles according to the invention are characterized in that they consist of an iron-containing core, a primary coat (synthesis polymer), and a secondary coat (targeting polymer) and, optionally, of pharmaceutic adjuvants, pharmaceuticals, and/or adsorption mediators/enhancers.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 10, 2003
    Assignees: Institut fur Diagnostikforschung GmbH, Der Freien Universitat Berline
    Inventors: Mayk Kresse, Detlev Pfefferer, Rüdiger Lawaczek, Susanne Wagner, Wolfgang Ebert, Volker Elste, Wolfhard Semmler, Matthias Taupitz, Josef Gaida, Anja Herrmann, Monika Jukl, Udo Swiderski
  • Lipophilic metal complexes for necrosis and infarction imaging
    Publication number: 20030064026
    Abstract: This invention describes the use of metal complexes that have a plasma protein bond of at least 10% as imaging diagnostic agents for locating an infarction or a necrosis using lasting positive visualization.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 3, 2003
    Applicant: Schering AG
    Inventors: Johannes Platzek, Ulrich Speck, Ulrich Niedballa, Bernd Raduchel, Hanns Weinmann, Wolfgang Ebert
  • Device and process for separating magnetic materials from pharmaceutical preparations, their starting or intermediate products, as well as agents that are produced with the aid of said device
    Patent number: 6517813
    Abstract: The invention relates to a device for magnetic separation of pharmaceutical preparations, their starting or intermediate products that contain a separation space, in which a magnetic gradient field prevails and which has an inlet and an outlet, whereby the device is embodied in the form of an attachment filter for injection instruments or infusion instruments.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: February 11, 2003
    Assignee: Schering AG
    Inventors: Werner Weitschies, Thomas Rheinländer, Wolfgang Ebert, Bernard Better
  • Working up of polymer sysnthesis solutions
    Publication number: 20030023030
    Abstract: The present invention relates to a process for working up solutions of polymers in organic solvents contaminated by alkaline constituents, using homogeneously soluble acids, especially by the introduction of an acid gas, and subsequent washing, and to the polymers so obtainable, which are distinguished by the fact that, on treatment with moist heat (sterilisation), only few defects caused by decomposition are formed, to the use thereof in the production of extrudates and molded specimen, and to the extrudates and molded specimen produced from those polymers themselves
    Type: Application
    Filed: July 16, 2002
    Publication date: January 30, 2003
    Inventors: Wolfgang Alewelt, Wolfgang Ebert, Thomas Fritz, Dirk Jahn, Stefan Westernacher, Frank Bruynseels, Johann Rechner
  • Heat-absorbing polymer composition
    Publication number: 20030022967
    Abstract: A thermoplastic molding composition suitable for, among others, glazing applications is disclosed. The composition contains a transparent thermoplastic, an organic infrared absorber and a phosphine compound, is characterized by a low tendency to yellowing even after prolonged exposure to thermal stressing, manifested by a small change in its Yellowness Index.
    Type: Application
    Filed: June 11, 2002
    Publication date: January 30, 2003
    Inventors: Martin Dobler, Wolfgang Ebert
  • Melt polycarbonate with improved resistance to hydrolysis
    Publication number: 20030013788
    Abstract: A molding composition containing melt polycarbonate conforming to a specific formula is disclosed. The composition that additionally contains a phosphorous compound is characterized in its improved resistance to hydrolysis.
    Type: Application
    Filed: March 22, 2002
    Publication date: January 16, 2003
    Inventors: James Mason, Wolfgang Ebert
  • Lipophilic metal complexes for necrosis and infarction imaging
    Patent number: 6495118
    Abstract: This invention describes the use of metal complexes that have a plasma protein bond of at least 10% as imaging diagnostic agents for locating an infarction or a necrosis using lasting positive visualization.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: December 17, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Ulrich Speck, Ulrich Niedballa, Bernd Radüchel, Hanns Joachim Weinmann, Wolfgang Ebert
  • Use of zwitterionic compounds as mold release agents in thermoplastics
    Publication number: 20020173567
    Abstract: The use of zwitterionic compounds as mold release agents in thermoplastics is disclosed. Molding compositions having good release properties, preferably compositions containing polycarbonate resins are thus disclosed.
    Type: Application
    Filed: March 13, 2002
    Publication date: November 21, 2002
    Inventors: Martin Dobler, Walter Kohler, Siegfried Neumann, Wolfgang Ebert
  • Metal complexes that contain perfluoroalkly, process for their production and their use in NMR diagnosis
    Patent number: 6468502
    Abstract: The invention relates to new, monomeric, perfluoroalkyl-substituted metal complexes, processes for their production, and their use in diagnosis and therapy. The compounds according to the invention are suitable especially as in vivo contrast media in nuclear spin tomography (MRT). They can preferably be used as blood-pool agents and as lymphographic agents.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 22, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Ulrich Niedballa, Bernd Radüchel, Wolfgang Schlecker, Hanns-Joachim Weinmann, Thomas Frenzel, Bernd Misselwitz, Wolfgang Ebert
  • Perfluoroalkylamides, their production and their use in diagnosis
    Patent number: 6461587
    Abstract: The invention relates to macrocyclic perfluoroalkylamides, their production and their use in diagnosis.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: October 8, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Johannes Platzek, Ulrich Niedballa, Detlev Suelzle, Wolfgang Schlecker, Bernd Raduechel, Hanns-Joachim Weinmann, Thomas Frenzel, Bernd Misselwitz, Wolfgang Ebert