Patents by Inventor Christian Steffens

Christian Steffens 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).

  • Publication number: 20240388800
    Abstract: A method for video stabilisation having the following steps: a) providing the a surgical microscope, comprising an image sensor, and a movement detection device which detects a movement of the image sensor and generates corresponding sensor movement data; b) detecting an object field and generating video data of the object field by means of the image sensor and generating image movement data by evaluating the video data; and c) correcting the video data, comprising c1) calculating displacement vector data which only or predominantly indicate a movement of the image sensor but do not or only subordinately indicate a movement within the object field, using the combined use of the sensor movement data, wherein the image movement data which indicate changes in movement of the object field are weighted and/or filtered on the basis of the sensor movement data, and c2) correcting the video data by means of the displacement vector data.
    Type: Application
    Filed: October 13, 2022
    Publication date: November 21, 2024
    Inventors: Enrico GEISSLER, Philipp BRENNER, Dominik SCHERER, Matthias HILLENBRAND, Joachim STEFFEN, Christian WOLF, Bernd KROLLA
  • Publication number: 20240287420
    Abstract: Compositions selected from detergents and cleaning agents and cosmetic agents are described. The compositions include biodegradable microcapsules including a core material and a shell. The shell includes at least one barrier layer and one stability layer. The barrier layer surrounds the core material. The stability layer includes at least one biopolymer, and is arranged on the outer surface of the barrier layer. An emulsion stabilizer is arranged at the transition between the barrier layer and the stability layer. Use of these agents is also described.
    Type: Application
    Filed: June 10, 2022
    Publication date: August 29, 2024
    Inventors: Andreas BAUER, Marc-Steffen SCHIEDEL, Stefan URLICHS, Manuela MATERNE, Hubert SMYREK, Christian GIESEN, Andreas GERIGK, Christian KIND, Claudia MEIER, Jeanette HILDEBRAND, Michael BIEDENBACH
  • Publication number: 20240002355
    Abstract: The invention relates in particular to a process for the preparation of a compound of formula (I) wherein R1 and R2 are as defined in the description and in the claims.
    Type: Application
    Filed: May 22, 2023
    Publication date: January 4, 2024
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Dainis KALDRE, Christian Oliver KAPPE, Christian Steffen MOESSNER, Peter SAGMEISTER, Joerg Mathias SEDELMEIER, Jason Douglas WILLIAMS
  • Publication number: 20230396265
    Abstract: The present disclosure relates to an integrated circuit with at least a first channel and a second channel. Each channel includes at least a DAC. The integrated circuit also includes a number of circuit elements interconnected between the channels. The circuit elements can be changed between a short circuit state and an open circuit state. Normally, each channel will operate independently of one another, using only the circuit components in its respective channel. However, the circuit elements are arranged to allow a user to combine part of the second channel with the first channel to improve the functionality and performance of the first channel. In particular, a state of the circuit elements can be chosen to combine components of the second channel with the first channel. For example, components (e.g. a sub-stage) of the second channel can be connected in parallel with corresponding components (e.g. a corresponding sub-stage) of the first channel.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 7, 2023
    Inventors: Fergus John Downey, Christian Steffen Birk, Dennis A. Dempsey, Ken Bryan Fulgosino Fabay
  • Patent number: 11774093
    Abstract: A burner includes a main body having an outer surface and at least partially defining an interior. The main body further includes an upstream end axially spaced from a downstream end. The outer surface includes a burner front face at the downstream end of the main body. An annular cooling air plenum is defined in the main body radially inwardly from the outer surface. A cooling air passage extends from the outer surface to the annular cooling air plenum. A plurality of cooling channels is circumferentially spaced apart from one another along the burner front face. Each cooling channel of the plurality of cooling channels extends from a respective inlet in fluid communication with the annular cooling air plenum to a respective outlet.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: October 3, 2023
    Assignee: General Electric Company
    Inventors: Nico Biagioli, Christian Steffen Terhaar, Holger Luebcke, Andre Theuer
  • Publication number: 20210317986
    Abstract: A burner includes a main body having an outer surface and at least partially defining an interior. The main body further includes an upstream end axially spaced from a downstream end. The outer surface includes a burner front face at the downstream end of the main body. An annular cooling air plenum is defined in the main body radially inwardly from the outer surface. A cooling air passage extends from the outer surface to the annular cooling air plenum. A plurality of cooling channels is circumferentially spaced apart from one another along the burner front face. Each cooling channel of the plurality of cooling channels extends from a respective inlet in fluid communication with the annular cooling air plenum to a respective outlet.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 14, 2021
    Inventors: Nico Biagioli, Christian Steffen Terhaar, Holger Luebcke, Andre Theuer
  • Patent number: 10970354
    Abstract: A method for increasing interaction speed between a website and a client device includes storing on an HTML5 local storage database on the client an ECMAScript file and a parameter from a web server of the website, and subsequently comparing a web server version number of the ECMAScript from the web server with the local version number of the parameter stored on the HTML5 local storage database. The parameter specifies a local version number of the ECMAScript file. The method can also include updating the ECMAScript stored on the HTML5 local storage database with the ECMAScript file from the web server when the web server version number is greater than the local version number. The method can also include loading the website on the client by retrieving the ECMAScript file from the HTML5 local storage database. Retrieving the ECMAScript file from the HTML5 local storage database can occur when the web server version number is the same as the local version number.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: April 6, 2021
    Assignee: SONGTRADR, INC.
    Inventor: Helge Christian Steffen
  • Patent number: 10875827
    Abstract: The present invention relates to a process for preparing an isocyanate by reacting a primary amine with phosgene, comprising I) providing an amine solution, II) providing a phosgene solution, III) mixing the amine solution with the phosgene solution in a mixing unit, followed by IV) further conversion in an adiabatically operated reaction zone and the removing of the gas phase formed as a result of the chemical reaction in a separation zone, V) expanding the remaining liquid phase in two or three stages, VI) further conversion of the liquid phase remaining after the last expansion stage in an indirectly heated reaction zone and VII) isolating the isocyanate from the reaction solution obtained therein.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: December 29, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Knauf, Juergen Spriewald, Anke Hielscher, Volker Michele, Dietmar Wastian, Christian Steffens
  • Patent number: 10851048
    Abstract: A process for preparing an isocyanate by reacting a primary amine with phosgene. The process includes providing an amine solution and adjusting its temperature in a heat exchanger, providing a phosgene solution and adjusting its temperature in a heat exchanger, mixing the amine solution with the phosgene solution, further conversion in an adiabatically operated reaction zone and the removing of the gas phase formed as a result of the chemical reaction in a separation zone, expanding the remaining liquid phase, further conversion of the liquid phase remaining after expansion in an indirectly heated reaction zone, and isolating the isocyanate from the obtained reaction solution. The temperature in the reaction zone and the temperature in the separation zone is adjusted by fixing a target value of 110° C. to 145° C.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: December 1, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Knauf, Christian Steffens, Anke Hielscher, Dietmar Wastian, Juergen Spriewald
  • Patent number: 10815193
    Abstract: The invention relates to an improved process for making available the coproduct hydrogen chloride obtained in the preparation of an isocyanate by phosgenation of the corresponding amine for a desired subsequent use (i.e.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 27, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Jan Busch, Jürgen Arras, Christian Steffens
  • Publication number: 20200148629
    Abstract: The present invention relates to a process for preparing an isocyanate by reacting a primary amine with phosgene, comprising I) providing an amine solution and adjusting its temperature in a heat exchanger, II) providing a phosgene solution and adjusting its temperature in a heat exchanger, III) mixing the amine solution with the phosgene solution in a mixing unit, followed by IV) further conversion in an adiabatically operated reaction zone and the removing of the gas phase formed as a result of the chemical reaction in a separation zone, V) expanding the remaining liquid phase, VI) further conversion of the liquid phase remaining after expansion in an indirectly heated reaction zone and VII) isolating the isocyanate from the reaction solution obtained therein, in which the temperature in the reaction zone and separation zone is adjusted by fixing a target value within a range from 110° C. to 145° C.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 14, 2020
    Inventors: Thomas Knauf, Christian Steffens, Anke Hielscher, Dietmar Wastian, Juergen Spriewald
  • Publication number: 20200148630
    Abstract: The present invention relates to a process for preparing an isocyanate by reacting a primary amine with phosgene, comprising I) providing an amine solution, II) providing a phosgene solution, III) mixing the amine solution with the phosgene solution in a mixing unit, followed by IV) further conversion in an adiabatically operated reaction zone and the removing of the gas phase formed as a result of the chemical reaction in a separation zone, V) expanding the remaining liquid phase in two or three stages, VI) further conversion of the liquid phase remaining after the last expansion stage in an indirectly heated reaction zone and VII) isolating the isocyanate from the reaction solution obtained therein.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 14, 2020
    Inventors: Thomas Knauf, Juergen Spriewald, Anke Hielscher, Volker Michele, Dietmar Wastian, Christian Steffens
  • Patent number: 10200041
    Abstract: An analog multiplexer may be used for sampling an input voltage that is capable of having a higher voltage level than an upper supply voltage. The analog multiplexer includes a plurality of input switch circuits and a shorting switch circuit. The plurality of input switch circuits include n-type or p-type laterally diffused field effect transistors (NLDFETs or PLDFETs). At least one of the input switch circuits includes a level shifting switch circuit that is able to sample an input voltage that is greater than the upper supply voltage for the multiplexer. A shorting switch circuit, at an output of the multiplexer, includes a capacitively coupled gate drive circuit and is configured to short a first differential output to a second differential output after the input voltage is sampled.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: February 5, 2019
    Assignee: Analog Devices Global
    Inventors: Jeremy R. Gorbold, Christian Steffen Birk, Gerard Mora Puchalt, Colin Charles Price, Michael C. W. Coln, Mahesh Madhavan Kumbaranthodiyil
  • Publication number: 20190018903
    Abstract: A method for increasing interaction speed between a website and a client device includes storing on an HTML5 local storage database on the client an ECMAScript file and a parameter from a web server of the website, and subsequently comparing a web server version number of the ECMAScript from the web server with the local version number of the parameter stored on the HTML5 local storage database. The parameter specifies a local version number of the ECMAScript file. The method can also include updating the ECMAScript stored on the HTML5 local storage database with the ECMAScript file from the web server when the web server version number is greater than the local version number. The method can also include loading the website on the client by retrieving the ECMAScript file from the HTML5 local storage database. Retrieving the ECMAScript file from the HTML5 local storage database can occur when the web server version number is the same as the local version number.
    Type: Application
    Filed: July 17, 2018
    Publication date: January 17, 2019
    Inventor: Helge Christian Steffen
  • Patent number: 10112892
    Abstract: The present invention relates to a continuous process for preparing a polyisocyanate, in which a polyamine and phosgene are first converted predominantly to carbamoyl chloride and amine hydrochloride and only in minor proportions to polyisocyanate, and a portion of the carbamoyl chloride- and amine hydrochloride-containing reaction mixture thus obtained is recycled into the reaction with phosgene, wherein polyamine, phosgene and the carbamoyl chloride- and amine hydrochloride-containing reaction mixture are mixed intimately in a mixing unit. The portion of the carbamoyl chloride- and amine hydrochloride-containing reaction mixture which is not recycled into the phosgenation is worked up to give the polyisocyanate.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 30, 2018
    Assignee: Covestro Deutschland AG
    Inventors: Jürgen Arras, Jan Busch, Christian Steffens, Dietmar Wastian, Manfred Keller-Killewald, Holger Conzelmann
  • Publication number: 20180186729
    Abstract: The invention relates to an improved process for making available the coproduct hydrogen chloride obtained in the preparation of an isocyanate by phosgenation of the corresponding amine for a desired subsequent use (i.e.
    Type: Application
    Filed: June 27, 2016
    Publication date: July 5, 2018
    Inventors: Jan Busch, Jürgen Arras, Christian Steffens
  • Publication number: 20180179150
    Abstract: The present invention relates to a continuous process for preparing a polyisocyanate, in which a polyamine and phosgene are first converted predominantly to carbamoyl chloride and amine hydrochloride and only in minor proportions to polyisocyanate, and a portion of the carbamoyl chloride- and amine hydrochloride-containing reaction mixture thus obtained is recycled into the reaction with phosgene, wherein polyamine, phosgene and the carbamoyl chloride- and amine hydrochloride-containing reaction mixture are mixed intimately in a mixing unit. The portion of the carbamoyl chloride- and amine hydrochloride-containing reaction mixture which is not recycled into the phosgenation is worked up to give the polyisocyanate.
    Type: Application
    Filed: June 27, 2016
    Publication date: June 28, 2018
    Inventors: Jürgen Arras, Jan Busch, Christian Steffens, Dietmar Wastian, Manfred Keller-Killewald, Holger Conzelmann
  • Publication number: 20180123591
    Abstract: An analog multiplexer may be used for sampling an input voltage that is capable of having a higher voltage level than an upper supply voltage. The analog multiplexer includes a plurality of input switch circuits and a shorting switch circuit. The plurality of input switch circuits include n-type or p-type laterally diffused field effect transistors (NLDFETs or PLDFETs). At least one of the input switch circuits includes a level shifting switch circuit that is able to sample an input voltage that is greater than the upper supply voltage for the multiplexer. A shorting switch circuit, at an output of the multiplexer, includes a capacitively coupled gate drive circuit and is configured to short a first differential output to a second differential output after the input voltage is sampled.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 3, 2018
    Inventors: Jeremy R. Gorbold, Christian Steffen Birk, Gerard Mora Puchalt, Colin Charles Price, Michael C.W. Coln, Mahesh Madhavan Kumbaranthodiyil
  • Patent number: 9939476
    Abstract: Embodiments of the present invention may provide a method of measuring an unknown capacitance of a device. The method may comprise the steps of driving a test signal to a circuit system that includes a current divider formed by the device with unknown capacitance and a reference capacitor; mirroring a current developed in the reference capacitor to a second circuit system that includes a measurement impedance; measuring a voltage within the second circuit system; and deriving a capacitance of the unknown capacitance based on the measured voltage with reference to a capacitance of the reference capacitor and the measurement impedance.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: April 10, 2018
    Assignee: ANALOG DEVICES GLOBAL
    Inventors: Christian Steffen Birk, John A. Cleary, David Sayago Montilla, Elizabeth A. Lillis, Padraig O'Connor, Eoin E. English, Patrick Pratt, Kathleen Embrechts, Wim Rens, Jan Crols
  • Publication number: 20170345036
    Abstract: An intellectual property valuation system, for use by a seller to generate an automated price for an item of intellectual property, includes a host device, at least one seller-controlled pricing parameter, and a database. The host device includes (i) a seller zone that is selectively accessible by the seller, and (ii) a control system including a processor that generates the seller zone. The at least one seller-controlled pricing parameter is related to the item of intellectual property and is inputted into the seller zone. The control system receives the at least one seller-controlled pricing parameter from the seller zone and generates a seller-controlled pricing matrix for the item of intellectual property that is based at least in part on the at least one seller-controlled pricing parameter. The database is in communication with the control system, and the seller-controlled pricing matrix is transmitted to and stored within the database.
    Type: Application
    Filed: May 30, 2017
    Publication date: November 30, 2017
    Inventors: Helge Christian Steffen, Paul Lancaster Wiltshire