Patents by Inventor Juergen Stephan

Juergen Stephan 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: 20220148341
    Abstract: In a number of embodiments, mathematical certainty and confidence to the prediction of battery failure due to a predicted future temperature drop is provided. A connected service may be used by a vehicle to obtain an accurate temperature forecast that will help predict a discrepancy between needed and available cold cranking amps to start a vehicle engine. If a determination is made, based at least upon a temperature forecast and battery health, that the battery will yield insufficient cranking amps to start a vehicle engine in the near future and may not be sufficiently rechargeable, a recommendation that the battery be replaced may be made in advance of the battery's end of life.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Inventors: Pascal Stephan Martin, Troy Schilling, Juergen Motz, Clemens Hermann Schmucker, Oliver Dieter Koller, Frederic Heidinger
  • Patent number: 10282872
    Abstract: A method is provided for reducing noise in a tomogram and/or volume rendering of at least one object. The noise can occur when scattered radiation artifacts are corrected. At least one tomogram that is affected by scattered radiation and at least one preliminary tomogram that has been corrected by a defined correction method are produced from a plurality of projection image datasets that are affected by scattered radiation. The noise emerging when scattered radiation artifacts are corrected may be reduced by selectively smoothening the noise using a filter based on an edge contour of the at least one object, which contour is rendered in the tomogram that is affected by scattered radiation.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 7, 2019
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Frank Dennerlein, Matthias Goldammer, Michael Schrapp, Karsten Schoerner, Juergen Stephan
  • Publication number: 20170032547
    Abstract: A method is provided for reducing noise in a tomogram and/or volume rendering of at least one object. The noise can occur when scattered radiation artefacts are corrected. At least one tomogram that is affected by scattered radiation and at least one preliminary tomogram that has been corrected by a defined correction method are produced from a plurality of projection image datasets that are affected by scattered radiation. The noise emerging when scattered radiation artefacts are corrected may be reduced by selectively smoothening the noise using a filter based on an edge contour of the at least one object, which contour is rendered in the tomogram that is affected by scattered radiation.
    Type: Application
    Filed: March 24, 2015
    Publication date: February 2, 2017
    Applicant: Siemens Healthcare GMBH
    Inventors: Frank Dennerlein, Matthias Goldammer, Michael Schrapp, Karsten Schoerner, Juergen Stephan
  • Publication number: 20150142392
    Abstract: A method is disclosed for designing a local coil to be used in a combined PET magnetic resonance device for magnetic resonance imaging in relation to the arrangement of radiation-attenuating electronic elements in an irradiation area for PET photons. In an embodiment of the method, taking into consideration at least one boundary condition specifying the degree of freedom of the positioning of the electronic elements, optimization of the positions of the electronic elements is undertaken in an optimization method in respect of a uniform distribution of attenuation centers which is as substantial as possible.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 21, 2015
    Inventors: Ralf LADEBECK, Daniel PAULUS, Harald H. QUICK, Jürgen STEPHAN
  • Patent number: 8362308
    Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: January 29, 2013
    Assignee: BASF SE
    Inventors: Jürgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Röper, Thomas Hill
  • Publication number: 20110160504
    Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 30, 2011
    Applicant: BASF SE
    Inventors: Jürgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Röper, Thomas Hill
  • Patent number: 7923588
    Abstract: A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: April 12, 2011
    Assignee: BASF SE
    Inventors: Jürgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Röper, Thomas Hill
  • Publication number: 20110058651
    Abstract: In a device and a method for testing an object for material defects, a multi-emitter x-ray source, at least one x-ray detector and a control system to activate emitters of the multi-emitter x-ray source are thereby used. A selective activation of individual emitters or of a portion of the emitters is conducted according to the requirements of at least one item of information related to the tested object. The Flexible and low-cost materials testing is achieved.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 10, 2011
    Inventors: JENS FUERST, MATTHIAS GOLDAMMER, MARKUS KOWARSCHIK, JUERGEN STEPHAN
  • Patent number: 7807615
    Abstract: The present invention relates to a process for preparing polyol alkyl ethers by reacting compounds comprising at least three hydroxyl functionalities with olefins in the presence of acidic catalysts at temperatures of from 20 to 250° C. and pressures of from 0.5 to 10 bar, wherein the olefins correspond to the general formula (I) in which R1 is hydrogen and R2 is a linear or branched carbon radical having from 7 to 28 carbon atoms, or R1 and R2 are each linear or branched carbon radicals having from 1 to 27 carbon atoms, the sum of the carbon number of R1 and R2 being at most 28, to polyol alkyl ethers derived from compounds having at least three hydroxyl functionalities, not more than all but one hydroxyl functionality being replaced by a moiety of the general formula (VIII) to the use of these polyol alkyl ethers as surfactants and to laundry detergents and cleaning compositions comprising these polyol alkyl ethers.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: October 5, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Stephan, Michael Roeper, Thomas Heidemann, Michael Triller, Juergen Tropsch
  • Patent number: 7754647
    Abstract: The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 13, 2010
    Assignee: Basf Aktiengesellschaft
    Inventors: Markus Schubert, Michael Hesse, Juergen Stephan, Volker Boehm, Andreas Brodhagen, Frank Poplow, Martina Sinner-Lang, Uwe Diehlmann, Gerhard Cox, Jochen Pfeifer
  • Patent number: 7714179
    Abstract: Processes for preparing a C5 aldehyde and propene are disclosed, the processes comprising: (a) providing a feedstream, the feedstream comprising butane, 1-butene, 2-butene and 1,3-butadiene, the 1,3-butadiene present in the feedstream in an amount up to 1000 ppm; (b) contacting the feedstream with hydrogen and carbon monoxide in the presence of a hydroformylation catalyst to form a 2-butene-rich butane stream and a C5 aldehyde; (c) separating the 2-butene-rich butane stream and the C5 aldehyde; and (d) contacting the 2-butene-rich butane stream with ethene in the presence of a metathesis catalyst to form a propene-containing hydrocarbon stream.
    Type: Grant
    Filed: August 6, 2005
    Date of Patent: May 11, 2010
    Assignee: BASF SE
    Inventors: Marcus Sigl, Markus Schubert, Jürgen Stephan, Rainer Papp, Frank Poplow
  • Patent number: 7601861
    Abstract: In a process for preparing alkylaryl compounds by reacting a C10-14-monoolefin mixture with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds and if appropriate subsequently sulfonating and neutralizing the resulting alkylaryl compounds, in the C10-14-monoolefins, on average, more than 0% and up to 100% of methyl branches are present in the longest carbon chain and fewer than 50% of the methyl branches are in the 2-, 3- and 4-position, calculated starting from the chain ends of the longest carbon chain.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: October 13, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Nils Bottke, Regina Benfer, Marco Bosch, Thomas Narbeshuber, Ulrich Steinbrenner, Juergen Stephan
  • Patent number: 7566799
    Abstract: The preparation of alkylaryl compounds takes place, inter alia, by a1) preparation of a C4 -olefin mixture from LPG, LNG or MTO streams, b 1) reaction of the C4-olefin mixture obtained in this way over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal of 2-pentene and/or 3-hexene, c1) dimerization of the 2-pentane and/or 3-hexene obtained in stage b1) over a dimerization catalyst to give a mixture comprising C10-12-olefins, and optional removal of the C10-12- olefins, d1) reaction of the C10-12-olefin mixtures obtained in stage a1) with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkylaromatic compounds, it being possible to add additional linear olefins prior to the reaction.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: July 28, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Steinbrenner, Thomas Heidemann, Goetz-Peter Schindler, Juergen Stephan, Heiko Maas
  • Patent number: 7371917
    Abstract: Process for preparing a compound having a nonaromatic C—C double or triple bond (compound A) from another compound or a mixture of other compounds having a nonaromatic C—C double or triple bond (compound B), which comprises bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at from 50 to 500° C.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: May 13, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Markus Schubert, Till Gerlach, Michael Hesse, Juergen Stephan, Volker Boehm, Andreas Brodhagen, Frank Poplow
  • Patent number: 7145042
    Abstract: The invention relates to a method for producing dialdehydes and/or ethylenically unsaturated monoaldehydes by reacting at least one compound with at least two ethylenically unsaturated double bonds with carbon monoxide and hydrogen in the presence of a hydroformylating catalyst with at least one complex of a metal of subgroup VIII. The subgroup comprises at least pnicogen chelate ligands.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: December 5, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Volland, Wolfgang Ahlers, Klaus Ebel, Rocco Paciello, Michael Röper, Thomas Mackewitz, Volker Böhm, Xavier Sava, Oliver Löber, Oliver Bey, Jürgen Stephan, Frank Haese
  • Publication number: 20040220441
    Abstract: Process for preparing a compound having a nonaromatic C—C double or triple bond (compound A) from another compound or a mixture of other compounds having a nonaromatic C—C double or triple bond (compound B), which comprises bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at from 50 to 500° C.
    Type: Application
    Filed: March 30, 2004
    Publication date: November 4, 2004
    Applicant: BASF Akiengesellschaft
    Inventors: Markus Schubert, Till Gerlach, Michael Hesse, Juergen Stephan, Volker Bohm, Andreas Brodhagen, Frank Poplow
  • Patent number: 6612208
    Abstract: Spindle nut holder for a spindle gear which drives a lever and functions under extreme conditions such as in a vacuum, under radiation exposure, and at a temperature close to absolute zero. The spindle nut holder includes a spindle nut and strip-shaped links each having an elongated, narrow cross section. One end of each link is connected to the spindle nut and the other end is connected to a frame. A pair of links are arranged on opposite sides of the spindle nut holder and each is oriented perpendicular to the spindle axis and the cross-section provides longer sides and shorter sides, the longer sides being parallel to the spindle axis. The cross-section of another link provides longer sides and shorter sides and is arranged relative to the pair of links such that the longer sides of this link are perpendicular to the longer sides of the pair of links.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: September 2, 2003
    Assignee: Forschungszentrum Rossendorf e.V.
    Inventor: Juergen Stephan
  • Patent number: 6445267
    Abstract: It is an object of the invention to propose a mechanical gearing for a tuner for cavity resonators, which can be realized and operated in a less expensive version and with long service life and little backlash even at very low temperatures. At the same time, there is no piezoelectric or magnetostrictive driving mechanisms or their combinations with coarse driving mechanisms. The tuner includes a multi-stage lever mechanism, for which the fulcrum and the movable connecting site are integral and are connected over a narrow cross member. The connecting sites between the stages of the multi-stage lever mechanism are constructed as a bolt-shaped part, the ends of which are firmly connected with one stage and the middle part of which is connected with the other stage.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Forschungszentrum Rossendorf e.V.
    Inventor: Juergen Stephan