Patents by Inventor Stefan Bernhardt

Stefan Bernhardt 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: 11096759
    Abstract: Operating a medical image recording device in the context of an image recording routine for a patient is provided. The image recording routine serves an image recording purpose. The image recording device is controlled based on operating parameters implemented by a controller of the image recording device. The operating parameters are identified completely automatically by an identification algorithm from input data describing at least the patient in the form of a patient model and/or the image recording purpose, and from a registration of the patient with a coordinates system of the image recording device. The operating parameters are used to control the image recording device. An examination region that is to be recorded for the patient and the image recording purpose are derived based on the registration.
    Type: Grant
    Filed: June 15, 2019
    Date of Patent: August 24, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Martin Spahn, Philipp Bernhardt, Stefan Böhm, Boris Stowasser, Richard Obler, Stanislav Tashenov, Rudolf Leiblein, Andreas Berting, Markus Lendl, Oliver Baruth
  • Patent number: 10793731
    Abstract: The present invention relates to the technical field of 3D printing, in particular in the form of the binder jetting process in which particles in a powder bed are adhesive-bonded by means of a printed adhesive to give a three-dimensional object. The particles here can be inorganic materials, e.g. sand or a metal powder, or polymeric particles, such as polymethacrylates or polyamides. To this end, polymethacrylates can by way of example take the form of suspension polymers known as bead polymers. In this context the present invention in particular relates to, as powders for 3D printing, suspension polymers which differ from the prior art in that they comprise a hard phase and an uncrosslinked soft phase.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: October 6, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Stefan Bernhardt, Thomas Hasskerl, Dirk Poppe, Stephan Wieber
  • Patent number: 10695978
    Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particles in a powder bed are bonded by means of a printed adhesive to form a three-dimensional object. The particles may be inorganic particles, for example sand or a metal powder, or polymeric particulate, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: June 30, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Dirk Poppe, Andrea Fruth, Stefan Bernhardt, Stephan Wieber
  • Patent number: 10688718
    Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particulate material in a powder bed is bonded by means of a printed adhesive to form a three-dimensional object. The particulate materials may be inorganic materials, for example sand or a metal powder, or particulate polymeric materials, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers. The present invention relates to the use of porous particles in the binder jetting process, in particular of porous suspension polymers. These powders for 3-D printing differ from the prior art in that the porosity results in a faster and better absorption of the printed binder by the powder particles. A great advantage of this procedure is additionally that a product with less warpage is formed and that the end product has a better surface appearance.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: June 23, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Stephan Wieber, Dirk Poppe, Stefan Bernhardt, Markus Pridöhl, Sven Balk, Christian Meier, Senada Schaack, Thomas Hasskerl
  • Publication number: 20190337282
    Abstract: The present invention relates to a novel process for the production of coated filaments for subsequent application as print in extrusion-based 3D printers, e.g. FDM printers (fused deposition modelling printers). The filaments are coated in a separate process outside of the printer, and can also be used in a conventional extrusion printer. The present invention further relates to the coating device for application of the coating to the filament and to a roll containing the coated filaments.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Markus PRIDOEHL, Ulrike BEHRENS, Stefan BERNHARDT, Ann-Kristin KLAAR, Samuel von KARSA-WILBERFORCE
  • Publication number: 20190299520
    Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particulate material in a powder bed is bonded by means of a printed adhesive to form a three-dimensional object. The particulate materials may be inorganic materials, for example sand or a metal powder, or particulate polymeric materials, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers. The present invention relates to the use of porous particles in the binder jetting process, in particular of porous suspension polymers. These powders for 3-D printing differ from the prior art in that the porosity results in a faster and better absorption of the printed binder by the powder particles. A great advantage of this procedure is additionally that a product with less warpage is formed and that the end product has a better surface appearance.
    Type: Application
    Filed: September 11, 2017
    Publication date: October 3, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Stephan Wieber, Dirk POPPE, Stefan BERNHARDT, Markus PRIDOHL, Sven BALK, Chrisian MEIER, Senada SCHAACK, Thomas HASSKERL
  • Publication number: 20190126542
    Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particles in a powder bed are bonded by means of a printed adhesive to form a three-dimensional object. The particles may be inorganic particles, for example sand or a metal powder, or polymeric particulate, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers.
    Type: Application
    Filed: April 4, 2017
    Publication date: May 2, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Dirk POPPE, Andrea FRUTH, Stefan BERNHARDT, Stephan WIEBER
  • Publication number: 20190127598
    Abstract: The present invention relates to the technical field of 3D printing, in particular in the form of the binder jetting process in which particles in a powder bed are adhesive-bonded by means of a printed adhesive to give a three-dimensional object. The particles here can be inorganic materials, e.g. sand or a metal powder, or polymeric particles, such as polymethacrylates or polyamides. To this end, polymethacrylates can by way of example take the form of suspension polymers known as bead polymers. In this context the present invention in particular relates to, as powders for 3D printing, suspension polymers which differ from the prior art in that they comprise a hard phase and an uncrosslinked soft phase.
    Type: Application
    Filed: April 12, 2017
    Publication date: May 2, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Stefan Bernhardt, Thomas HASSKERL, Dirk POPPE, Stephan WIEBER
  • Publication number: 20160017165
    Abstract: The present invention relates to a technology for the treatment of materials for exposed outdoor use with a high-grade, abrasion-resistant surface coating based on a formulation comprising crosslinkable fluoropolymers. The invention further relates to particular embodiments for the surface coating.
    Type: Application
    Filed: February 14, 2014
    Publication date: January 21, 2016
    Applicant: Evonik Roehm GmbH
    Inventors: Uwe NUMRICH, Andre HENNIG, Stefan BERNHARDT, Markus HALLACK, Ruediger JELITTE
  • Patent number: 9193110
    Abstract: The present invention relates to a novel process for the production of coated filaments for subsequent application as print in extrusion-based 3D printers, e.g. FDM printers (fused deposition modelling printers). The filaments are coated in a separate process outside of the printer, and can also be used in a conventional extrusion printer. The present invention further relates to the coating device for application of the coating to the filament and to a roll containing the coated filaments.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 24, 2015
    Assignee: Evonik Industries AG
    Inventors: Markus Pridoehl, Ulrike Behrens, Stefan Bernhardt, Ann-Kristin Klaar, Samuel von Karsa-Wilberforce
  • Publication number: 20150321424
    Abstract: A coating device for the production of coated filaments for an extrusion-based 3D printing process is provided. The device contains a coating unit and a fixing unit downstream of the coating unit.
    Type: Application
    Filed: July 20, 2015
    Publication date: November 12, 2015
    Applicant: Evonik Industries AG
    Inventors: Markus PRIDOEHL, Ulrike BEHRENS, Stefan BERNHARDT, Ann-Kristin KLAAR, Samuel von KARSA-WILBERFORCE
  • Patent number: 9102640
    Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: August 11, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Prasad Muppa, Ron Postma, Bart Van Den Berg, Jürgen Stock, Holger Wiederhold, Hans Rausch, Jörg Schallenberg, Stefan Bernhardt
  • Publication number: 20140350080
    Abstract: This invention relates to modified short interfering RNA (siRNA) nucleic acid molecules, particularly siRNA's which have been modified by the addition of a 2-0-guanidinopropyl (GP) modified nucleoside. In particular the invention relates to modified siRNAs which are capable of silencing target sequences, methods of treating and preventing infection by using the siRNAs, medicaments containing the siRNAs and use of the siRNAs.
    Type: Application
    Filed: October 26, 2012
    Publication date: November 27, 2014
    Applicant: UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG
    Inventors: Patrick Arbuthnot, Justin Hean, Abdullah Ely, Musa Marimani, Jolanta Brzezinska, Jennifer D'Onofrio, Maximilian C.R. Buff, Joachim W. Engels, Stefan Bernhardt
  • Patent number: 8859790
    Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: October 14, 2014
    Assignee: Momentive Specialty Chemicals Inc.
    Inventors: Prasad Muppa, Ron Postma, Bart Van Den Berg, Juergen Stock, Holger Wiederhold, Hans Rausch, Jorg Schallenberg, Stefan Bernhardt
  • Patent number: 8826828
    Abstract: A floor pan for high-speed trains is disposed below a car floor and implemented as a stand encased by a protective floor and has lateral carrier walls with side plates fastened thereon. The floor pan provides protection against damage by ballast stones to the under-floor space in which the equipment is stored.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: September 9, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Baumann, Stefan Bernhardt, Rüdiger Mangler
  • Patent number: 8822590
    Abstract: The invention relates to a novel support material for the fused deposition modelling process for producing three-dimensional objects. The invention relates more particularly to a 3D printing process involving support materials which are easier to remove than in the prior art. The support materials according to the invention are styrene-maleic anhydride copolymers for example.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: September 2, 2014
    Assignee: Evonik Röhm GmbH
    Inventors: Florian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden
  • Publication number: 20140171666
    Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.
    Type: Application
    Filed: February 19, 2014
    Publication date: June 19, 2014
    Applicant: Momentive Specialty Chemicals Inc.
    Inventors: Prasad MUPPA, Ron Postma, Bart Van Den Berg, Juergen Stock, Holger Wiederhold, Hans Rausch, Jörg Schallenberg, Stefan Bernhardt
  • Publication number: 20140134335
    Abstract: The present invention relates to a novel process for the production of coated filaments for subsequent application as print in extrusion-based 3D printers, e.g. FDM printers (fused deposition modelling printers). The filaments are coated in a separate process outside of the printer, and can also be used in a conventional extrusion printer. The present invention further relates to the coating device for application of the coating to the filament and to a roll containing the coated filaments.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 15, 2014
    Applicant: Evonik Industries AG
    Inventors: Markus PRIDOEHL, Ulrike Behrens, Stefan Bernhardt, Ann-Kristin Klaar, Samuel von Karsa-Wilberforce
  • Publication number: 20130317164
    Abstract: The invention relates to a novel support material for the fused deposition modelling process for producing three-dimensional objects. The invention relates more particularly to a 3D printing process involving support materials which are easier to remove than in the prior art. The support materials according to the invention are styrene-maleic anhydride copolymers for example.
    Type: Application
    Filed: March 13, 2012
    Publication date: November 28, 2013
    Applicant: Evonik Roehm GmbH
    Inventors: Florian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden
  • Publication number: 20130023680
    Abstract: Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process.
    Type: Application
    Filed: January 26, 2011
    Publication date: January 24, 2013
    Inventors: Prasad Muppa, Ron Postma, Bart Van Den Berg, Juergen Stock, Holger Wiederhold, Hans Rausch, Jorg Schallenberg, Stefan Bernhardt