Patents by Inventor Christoph Lesniak

Christoph Lesniak 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: 10954164
    Abstract: Provided are materials for a formed body comprising hexagonal boron nitride and such formed bodies. Also provided are heat-treated formed body obtained by heat-treating the formed bodies. The invention further relates to processes for making the formed body and the heat-treated formed body.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: March 23, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jan C. Zimmer, Ursula Kayser, Krishna B. Uibel, Christoph Lesniak
  • Publication number: 20200385625
    Abstract: The present disclosure relates to a powder composition comprising first and second agglomerates of inorganic particles, to a polymer composition comprising a polymer and said powder composition, and to a composite article made from said polymer composition. The present disclosure further relates to a process for producing said powder composition and to a process for making said composite article, and to the use of said powder composition as thermal conduction means to control the temperature of electrical and electronic components or assemblies or batteries. The present disclosure further relates to a kit of parts for producing said powder composition.
    Type: Application
    Filed: December 18, 2018
    Publication date: December 10, 2020
    Inventors: Christoph Lesniak, Robert M. Schädel, Krishna B. Uibel
  • Patent number: 10829417
    Abstract: Provided are formed bodies comprising hexagonal boron nitride wherein the formed body has a Brinell hardness of at least 2 HBW 2,5/2, and wherein the formed body is obtainable by a process at temperatures of at most 100° C., and wherein the Brinell hardness is measured according to DIN EN ISO 6506-1 (2013). Further provided are processes for making said formed body.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: November 10, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Krishna B. Uibel, Jan C. Zimmer, Christoph Lesniak, Robert M. Schädel
  • Patent number: 10415351
    Abstract: The subject matter of the invention is a separating device for removing solid particles from liquids and/or gases in extraction wells, comprising a) an annular stack (7) of at least three brittle-hard annular discs (8), the upper side (9) of the annular discs (8) having at least three spacers (10), which are distributed uniformly over the circular circumference of the discs and the contact area (11) of which is planar, so that the spacers (10) have planiform contact with the underside of an adjacent annular disc (8), and the annular discs (8) being stacked and fixed in such a way that between the individual discs (8) there is in each case a separating gap (14) for the removal of solid particles, and the axial projection of the annular discs (8) at the inner and the outer circumference being circular, and the brittle-hard material of the annular discs (8) being chosen from oxidic and non-oxidic ceramic materials, mixed ceramics of these materials, ceramic materials with the addition of secondary phases, mixed
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: September 17, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Dietrich Lange, Christoph Lesniak, Alexander Krecker
  • Publication number: 20190177235
    Abstract: Provided are materials for a formed body comprising hexagonal boron nitride and such formed bodies. Also provided are heat-treated formed body obtained by heat-treating the formed bodies. The invention further relates to processes for making the formed body and the heat-treated formed body.
    Type: Application
    Filed: July 21, 2017
    Publication date: June 13, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jan C. Zimmer, Ursula Kayser, Krishna B. Uibel, Christoph Lesniak
  • Publication number: 20190177234
    Abstract: Provided are formed bodies comprising hexagonal boron nitride wherein the formed body has a Brinell hardness of at least 2 HBW 2,5/2, and wherein the formed body is obtainable by a process at temperatures of at most 100° C., and wherein the Brinell hardness is measured according to DIN EN ISO 6506-1 (2013). Further provided are processes for making said formed body.
    Type: Application
    Filed: June 15, 2017
    Publication date: June 13, 2019
    Inventors: Krishna B. Uibel, Jan C. Zimmer, Christoph Lesniak, Robert M. Schädel
  • Publication number: 20170254185
    Abstract: The subject matter of the invention is a separating device for removing solid particles from liquids and/or gases in extraction wells, comprising a) an annular stack (7) of at least three brittle-hard annular discs (8), the upper side (9) of the annular discs (8) having at least three spacers (10), which are distributed uniformly over the circular circumference of the discs and the contact area (11) of which is planar, so that the spacers (10) have planiform contact with the underside of an adjacent annular disc (8), and the annular discs (8) being stacked and fixed in such a way that between the individual discs (8) there is in each case a separating gap (14) for the removal of solid particles, and the axial projection of the annular discs (8) at the inner and the outer circumference being circular, and the brittle-hard material of the annular discs (8) being chosen from oxidic and non-oxidic ceramic materials, mixed ceramics of these materials, ceramic materials with the addition of secondary phases, mixed
    Type: Application
    Filed: July 27, 2015
    Publication date: September 7, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Dietrich Lange, Christoph Lesniak, Alexander Krecker
  • Publication number: 20120022246
    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: October 7, 2011
    Publication date: January 26, 2012
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Jorg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lesniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Patent number: 8012252
    Abstract: The invention relates to a slip for producing a durable hard coating on a substrate, comprising a) silicon nitride particles and b) a binder comprising nanosize solid particles and/or precursors of nanosize solid particles from production via a sol-gel process. The invention further relates to shaped bodies composed of a substrate with a durable hard coating which has been produced from a slip according to the invention. The shaped bodies of the invention are suitable for use in the field of corrosive nonferrous metal melts.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: September 6, 2011
    Assignee: ESK CERAMICS GmbH & Co., KG
    Inventors: Martin Engler, Christoph Lesniak, Krishna Uibel
  • Publication number: 20110117561
    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: November 30, 2010
    Publication date: May 19, 2011
    Applicant: ROCHE DIAGNOSTICS GMBH
    Inventors: Jörg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lesniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Publication number: 20090105062
    Abstract: The invention relates to a sintered wear-resistant material which is based on transition metal diborides and comprises a) as main phase, 80-98.8% by weight of a fine-grained transition metal diboride or transition metal diboride mixed crystal comprising at least two transition metal diborides or mixtures of such diboride mixed crystals or mixtures of such diboride mixed crystals with one or more transition metal diborides, where the transition metals are selected from sub-groups IV to VI of the Periodic Table, b) as second phase, 0.2 to 5% by weight of a continuous, oxygen-containing grain boundary phase and c) as third phase, 1-15% by weight of particulate boron carbide and/or silicon carbide.
    Type: Application
    Filed: March 12, 2007
    Publication date: April 23, 2009
    Applicant: ESK CERAMICS GmbH & Co., KG
    Inventors: Hubert Thaler, Clemens Schmalzried, Frank Wallmeier, Christoph Lesniak
  • Publication number: 20070089642
    Abstract: The invention relates to a slip for producing a durable hard coating on a substrate, comprising a) silicon nitride particles and b) a binder comprising nanosize solid particles and/or precursors of nanosize solid particles from production via a sol-gel process. The invention further relates to shaped bodies composed of a substrate with a durable hard coating which has been produced from a slip according to the invention. The shaped bodies of the invention are suitable for use in the field of corrosive nonferrous metal melts.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 26, 2007
    Applicant: ESK CERAMICS GMBH & CO. KG
    Inventors: Martin Engler, Christoph Lesniak, Krishna Uibel
  • Publication number: 20070082360
    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: December 12, 2006
    Publication date: April 12, 2007
    Inventors: Jorg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lesniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Patent number: 6979466
    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: March 17, 2003
    Date of Patent: December 27, 2005
    Assignee: Leibniz-Institut fuer neue Materialien Gemeinnuetzige GmbH
    Inventors: Christoph Lesniak, Thomas Schiestel, Helmut Schmidt, Andreas Jordan
  • Publication number: 20050266429
    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: January 24, 2005
    Publication date: December 1, 2005
    Inventors: Jorg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lesniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Patent number: 6870047
    Abstract: Magnetic particles are prepared containing a magnetic core coated with a glass layer having a substantially pore-free class surface or having pores with a diameter offices than 10 nm. The particles are used for separating biological material such as nucleic acids. A preferred process of preparing the particles is by forming a mixture of magnetic cores with a sol formed from an alcohol and a metal alkoxide, spray-drying the mixture to coat the cores with a layer of gelled sol, and heating the coated cores to obtain the magnetic glass particles. Preferably, the particles have an average particle size of less than 100 ?m. The magnetic core may be a composite material containing a mica core and magnetite particles immobilized on the mica core, and the glass layer may contain boron oxide. Magnetic core materials include magnetite (Fe3O4) and Fe2O3.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: March 22, 2005
    Assignee: Roche Diagnostics GmbH
    Inventors: Jörg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lesniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Publication number: 20040265233
    Abstract: A method for producing composite particles in which superparamagnetic iron oxide particles having a diameter of less than 30 nm are contained in a polysiloxane matrix comprising functional groups. The composite particles obtained by the method are suitable for magnetic separation methods.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Inventors: Susanne Holzer, Wolfgang Krause, Christoph Lesniak, Helmut Schmidt
  • 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
  • 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
  • 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