Patents by Inventor Marcus Schäfer

Marcus Schäfer 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: 11981943
    Abstract: The present disclosure provides CAPN5 substrates and CAPN5 inhibitors, nucleic acids encoding CAPN5 substrates or CAPN5 inhibitors, methods to deliver CAPN5 substrate or CAPN5 inhibitor agents to the eye, and methods of identifying inhibitors of CAPN5.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: May 14, 2024
    Assignee: UNIVERSITY OF IOWA RESEARCH FOUNDATION
    Inventors: Vinit B. Mahajan, Alexander G. Bassuk, Diana F. Colgan, Gabriel Velez, Kellie Schaefer, Marcus Toral, Shu Wu, Lokesh Gakhar
  • Patent number: 11926963
    Abstract: A method for determining the dryness of a fibrous web, in particular a tissue web, during the production of the fibrous web, is carried out in a machine including a drying cylinder, in particular a Yankee cylinder, to which at least one, preferably two, dryer hoods are assigned, and a reel-up for winding up the fibrous web. The determination of the dryness of the fibrous web is carried out before the drying cylinder on the basis of measured values which describe the following variables: the amount of solids in the fiber web at the reel-up, the amount of water in the fiber web at the reel-up, and the amount of water which is evaporated in the dryer hood or hoods. A method for controlling or regulating a machine for producing a fibrous web, a computer program and computer program product are also provided.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 12, 2024
    Assignee: Voith Patent GmbH
    Inventors: Jan Achtermann, Marcus Schwier, Marco Popp, Juergen Schaefer
  • Patent number: 10478860
    Abstract: Polycrystalline silicon fragments are sorted into defined particle fractions in a flexible manner independent of initial particle size distribution and desired fraction size by a first mechanical screening into a fine fraction and residual fraction, followed by optoelectronic sorting of the residual fraction.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: November 19, 2019
    Assignee: WACKER CHEMIE AG
    Inventors: Marcus Schaefer, Reiner Pech
  • Patent number: 9340901
    Abstract: Polysilicon rods from the Siemens process are crushed into fragments and further processed to fragments having very low metal contamination in an economical manner by purposefully fabricating parts contacting the polysilicon from materials which cause high metal contamination, and removing the metal contamination by a cleaning bath or baths tailored to the particular metal contamination. By this process, economical materials previously scrupulously avoided, such as low alloy steel, can be used for crushers, conveyors, and other polysilicon-contacting parts of the crushing and classifying system.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: May 17, 2016
    Assignee: Wacker Chemie AG
    Inventors: Marcus Schaefer, Reiner Peach, Hanns Wochner
  • Patent number: 8894766
    Abstract: The invention provides a process for producing polycrystalline silicon, including introduction of a reaction gas containing a silicon-containing component and hydrogen by means of one or more nozzles into a reactor including at least one heated filament rod on which silicon is deposited, wherein an Archimedes number Arn which describes flow conditions in the reactor, as a function of the fill level FL which states the ratio of one rod volume to one empty reactor volume in percent, for a fill level FL of up to 5% is within the range limited at the lower end by the function Ar=2000×FL?0.6 and at the upper end by the function Ar=17 000×FL?0.9, and at a fill level of greater than 5% is within a range from at least 750 to at most 4000.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: November 25, 2014
    Assignee: Wacker Chemie AG
    Inventors: Marcus Schaefer, Oliver Kraetzschmar
  • Publication number: 20120165439
    Abstract: The present invention relates to flame-retardant compositions based on a thermoplastic polyamide comprising non-fibrous and unfoamed ground glass with specific particle size distribution, geometry and size, and also to the production and the use of the compositions of the invention for producing products, preferably fibres, foils and mouldings of any type.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 28, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Jochen Endtner, Marcus Schäfer, Matthias Bienmüller, Thorsten Bredemann, Robert Hubertus van Mullekom
  • Publication number: 20120048178
    Abstract: The invention provides a process for producing polycrystalline silicon, including introduction of a reaction gas containing a silicon-containing component and hydrogen by means of one or more nozzles into a reactor including at least one heated filament rod on which silicon is deposited, wherein an Archimedes number Arn which describes flow conditions in the reactor, as a function of the fill level FL which states the ratio of one rod volume to one empty reactor volume in percent, for a fill level FL of up to 5% is within the range limited at the lower end by the function Ar=2000×FL?0.6 and at the upper end by the function Ar=17 000×FL0.9, and at a fill level of greater than 5% is within a range from at least 750 to at most 4000.
    Type: Application
    Filed: August 22, 2011
    Publication date: March 1, 2012
    Applicant: WACKER CHEMIE AG
    Inventors: Marcus SCHAEFER, Oliver KRAETZSCHMAR
  • Patent number: 8074905
    Abstract: The invention relates to a device for comminuting and sorting polycrystalline silicon, comprising an instrument for feeding a coarse polysilicon fraction into a crushing system, the crushing system associated with a sorting system for classifying the polysilicon fraction, wherein the device is provided with a controller which allows variable adjustment of at least one crushing parameter in the crushing system and/or at least one sorting parameter in the sorting system.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: December 13, 2011
    Assignee: Wacker Chemie AG
    Inventors: Marcus Schaefer, Reiner Pech, Matthaeus Schantz
  • Patent number: 7947360
    Abstract: This invention relates to thermoplastic molding compositions with improved flowabilty based on a thermoplastic polyamide and on a copolymer composed of at least one olefin with at least one methacrylic ester or acrylic ester of an aliphatic alcohol, the MFI of the copolymer being not less than 50 g/10 min, and to a process for preparation of these molding compositions, and also to the use of the these molding compositions, for production of moldings for the electrical, electronics, telecommunications, motor vehicle, or computer industry, in sports, in medicine, in the household or in the entertainment industry.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: May 24, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Detlev Joachimi, Peter Persigehl, Kurt Jeschke, Marcus Schäfer, Ralph Ulrich, Robert Hubertus Van Mullekom, Jochen Endtner, Jens Peter Joschek, Matthias Bienmüller
  • Publication number: 20100001106
    Abstract: Polysilicon rods from the Siemens process are crushed into fragments and further processed to fragments having very low metal contamination in an economical manner by purposefully fabricating parts contacting the polysilicon from materials which cause high metal contamination, and removing the metal contamination by a cleaning bath or baths tailored to the particular metal contamination. By this process, economical materials previously scrupulously avoided, such as low alloy steel, can be used for crushers, conveyors, and other polysilicon-contacting parts of the crushing and classifying system.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 7, 2010
    Applicant: WACKER CHEMIE AG
    Inventors: Marcus Schaefer, Reiner Pech, Hanns Wochner
  • Publication number: 20090120848
    Abstract: Polycrystalline silicon fragments are sorted into defined particle fractions in a flexible manner independent of initial particle size distribution and desired fraction size by a first mechanical screening into a fine fraction and residual fraction, followed by optoelectronic sorting of the residual fraction.
    Type: Application
    Filed: March 28, 2007
    Publication date: May 14, 2009
    Applicant: WACKER CHEMIE AG
    Inventors: Marcus Schaefer, Reiner Pech
  • Patent number: 7378470
    Abstract: This invention relates to thermoplastic molding compositions with improved flowability based on a thermoplastic polyester and on at least one copolymer composed of at least one olefin with at least one methacrylic ester or acrylic ester of an aliphatic alcohol, the MFI of the copolymer being not less than 50 g/10 min, to a process for preparation of these molding compositions, and also the use of these molding compositions for production of moldings for the electrical, electronics, telecommunications, motor vehicle or computer industry, in sports, in the household, in medicine or for the entertainment industry.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: May 27, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventors: Peter Persigehl, Detlev Joachimi, Kurt Jeschke, Marcus Schäfer, Ralph Ulrich, Robert Hubertus Van Mullekom, Jochen Endtner, Jens Peter Joschek, Matthias Bienmüller
  • Publication number: 20070235574
    Abstract: The invention relates to a device for comminuting and sorting polycrystalline silicon, comprising an instrument for feeding a coarse polysilicon fraction into a crushing system, the crushing system associated with a sorting system for classifying the polysilicon fraction, wherein the device is provided with a controller which allows variable adjustment of at least one crushing parameter in the crushing system and/or at least one sorting parameter in the sorting system.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 11, 2007
    Applicant: WACKER CHEMIE AG
    Inventors: Marcus Schaefer, Reiner Pech, Matthaeus Schantz
  • Patent number: 6790909
    Abstract: The invention relates to a process for preparing a reaction product (RP) which is functionalized by groups containing halogen or sulfonyl chloride by reaction of at least one free-radically polymerizable monomer, at least one compound of the formula (I), at least one free-radical initiator and at least one free-radically polymerizable monomer containing halogen or sulfonyl chloride groups under free-radical conditions, and to a reaction product (RP) which can be prepared by the process of the present invention and to the use of the reaction product (RP) as macroinitiator for the preparation of graft copolymers. Furthermore the invention relates to a process for preparing graft copolymers by reaction of the reaction product (RP) with at least one suitable monomer and to graft copolymers which can be prepared by the process of the present invention and also to the use of the graft copolymers of the present invention.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: September 14, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Yvonne Heischkel, Nicolas Stöckel, Philipp Wieland, Marcus Schäfer, Oskar Nuyken
  • Patent number: D940320
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: January 4, 2022
    Assignee: AESCULAP AG
    Inventors: Uwe Schaz, Uwe Mattes, Marcus Schäfer, Elke Moser