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).
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Patent number: 11981943Abstract: 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: GrantFiled: October 2, 2017Date of Patent: May 14, 2024Assignee: UNIVERSITY OF IOWA RESEARCH FOUNDATIONInventors: Vinit B. Mahajan, Alexander G. Bassuk, Diana F. Colgan, Gabriel Velez, Kellie Schaefer, Marcus Toral, Shu Wu, Lokesh Gakhar
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Patent number: 11926963Abstract: 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: GrantFiled: November 20, 2018Date of Patent: March 12, 2024Assignee: Voith Patent GmbHInventors: Jan Achtermann, Marcus Schwier, Marco Popp, Juergen Schaefer
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Patent number: 10478860Abstract: 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: GrantFiled: March 28, 2007Date of Patent: November 19, 2019Assignee: WACKER CHEMIE AGInventors: Marcus Schaefer, Reiner Pech
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Patent number: 9340901Abstract: 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: GrantFiled: July 13, 2007Date of Patent: May 17, 2016Assignee: Wacker Chemie AGInventors: Marcus Schaefer, Reiner Peach, Hanns Wochner
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Patent number: 8894766Abstract: 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: GrantFiled: August 22, 2011Date of Patent: November 25, 2014Assignee: Wacker Chemie AGInventors: Marcus Schaefer, Oliver Kraetzschmar
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Publication number: 20120165439Abstract: 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: ApplicationFiled: December 19, 2011Publication date: June 28, 2012Applicant: LANXESS DEUTSCHLAND GMBHInventors: Jochen Endtner, Marcus Schäfer, Matthias Bienmüller, Thorsten Bredemann, Robert Hubertus van Mullekom
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Publication number: 20120048178Abstract: 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: ApplicationFiled: August 22, 2011Publication date: March 1, 2012Applicant: WACKER CHEMIE AGInventors: Marcus SCHAEFER, Oliver KRAETZSCHMAR
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Patent number: 8074905Abstract: 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: GrantFiled: March 29, 2007Date of Patent: December 13, 2011Assignee: Wacker Chemie AGInventors: Marcus Schaefer, Reiner Pech, Matthaeus Schantz
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Patent number: 7947360Abstract: 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: GrantFiled: November 30, 2005Date of Patent: May 24, 2011Assignee: LANXESS Deutschland GmbHInventors: Detlev Joachimi, Peter Persigehl, Kurt Jeschke, Marcus Schäfer, Ralph Ulrich, Robert Hubertus Van Mullekom, Jochen Endtner, Jens Peter Joschek, Matthias Bienmüller
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Publication number: 20100001106Abstract: 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: ApplicationFiled: July 13, 2007Publication date: January 7, 2010Applicant: WACKER CHEMIE AGInventors: Marcus Schaefer, Reiner Pech, Hanns Wochner
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Publication number: 20090120848Abstract: 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: ApplicationFiled: March 28, 2007Publication date: May 14, 2009Applicant: WACKER CHEMIE AGInventors: Marcus Schaefer, Reiner Pech
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Patent number: 7378470Abstract: 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: GrantFiled: November 30, 2005Date of Patent: May 27, 2008Assignee: LANXESS Deutschland GmbHInventors: Peter Persigehl, Detlev Joachimi, Kurt Jeschke, Marcus Schäfer, Ralph Ulrich, Robert Hubertus Van Mullekom, Jochen Endtner, Jens Peter Joschek, Matthias Bienmüller
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Publication number: 20070235574Abstract: 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: ApplicationFiled: March 29, 2007Publication date: October 11, 2007Applicant: WACKER CHEMIE AGInventors: Marcus Schaefer, Reiner Pech, Matthaeus Schantz
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Patent number: 6790909Abstract: 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: GrantFiled: July 14, 2003Date of Patent: September 14, 2004Assignee: BASF AktiengesellschaftInventors: Yvonne Heischkel, Nicolas Stöckel, Philipp Wieland, Marcus Schäfer, Oskar Nuyken
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Patent number: D940320Type: GrantFiled: April 12, 2018Date of Patent: January 4, 2022Assignee: AESCULAP AGInventors: Uwe Schaz, Uwe Mattes, Marcus Schäfer, Elke Moser