Patents by Inventor Norbert Hort
Norbert Hort 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: 9676026Abstract: A method for manufacturing a bioresorbable implant, wherein a magnesium alloy is formed into an implant. A melt is pressed into a die and gases in the die induce turbulence in the inflowing melt, thereby enclosing gas, so that the porous implant is formed with a porosity, which increases from outside inwardly. The surface of the implant is substantially free from open pores.Type: GrantFiled: October 31, 2014Date of Patent: June 13, 2017Assignee: AAP Implantate AGInventors: Frank Witte, Norbert Hort, Marco Wolfstadter, Bernd Frohlich, Wolfgang Voith, Hans-Joachim Fischer
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Patent number: 9566367Abstract: The present invention is directed to a magnesium alloy containing 5.0% by wt.-25.5% by wt. dysprosium, 0.01% by wt.-5.0% by wt. neodymium and/or europium, 0.1% by wt. 3.0% by wt. zinc, 0.1% by wt.-2.0% by wt. Zirconium, and balance to 100.0% by wt. magnesium, being degradable under physiological conditions and which is particularly suitable for the production of absorbable stents and to stents made thereof.Type: GrantFiled: August 15, 2012Date of Patent: February 14, 2017Assignees: Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH, MEKO LASERSTRAHL-MATERIALBEARBEITUNGEN E.KInventors: Michael Stekker, Norbert Hort, Frank Feyerabend
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Patent number: 9522219Abstract: The present invention is directed to stents made of a magnesium alloy degradable under physiological conditions and an outer polymeric coating. Herein, the stents according to the invention can be additionally coated with at least one anti-inflammatory, antiproliferative, antiangiogenic, antirestenotic and/or antithrombogenic active agent.Type: GrantFiled: August 15, 2012Date of Patent: December 20, 2016Assignees: HEMOTEQ AG, MEKO LASERSTRAHL-MATERIALBEARBEITUNGEN E.KInventors: Michael Stekker, Norbert Hort, Frank Feyerabend, Erika Hoffmann, Michael Hoffmann, Roland Horres
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Publication number: 20150053364Abstract: The invention relates to an implant from a magnesium alloy, in which porosity increases towards the core.Type: ApplicationFiled: October 31, 2014Publication date: February 26, 2015Inventors: Frank WITTE, Norbert HORT, Marco WOLFSTADTER, Bernd FROHLICH, Wolfgang VOITH, Hans-Joachim FISCHER
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Publication number: 20140222133Abstract: The present invention is directed to a magnesium alloy comprising dysprosium, being degradable under physiological conditions and which is particularly suitable for the production of absorbable stents and to stents made thereof.Type: ApplicationFiled: August 15, 2012Publication date: August 7, 2014Applicants: Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH, MEKO LASERSTRAHL-MATERIALBEARBEITUNGEN E.KInventors: Michael Stekker, Norbert Hort, Frank Feyerabend
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Publication number: 20140199365Abstract: The present invention is directed to stents made of a magnesium alloy degradable under physiological conditions and an outer polymeric coating. Herein, the stents according to the invention can be additionally coated with at least one anti-inflammatory, antiproliferative, antiangiogenic, antirestenotic and/or antithrombogenic active agent.Type: ApplicationFiled: August 15, 2012Publication date: July 17, 2014Applicants: HEMOTEQ AG, MEKO LASERSTRAHL-MATERIALBEARBEITUNGEN E.KInventors: Michael Stekker, Norbert Hort, Frank Feyerabend, Erika Hoffmann, Michael Hoffmann, Roland Horres
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Patent number: 8591803Abstract: The present invention relates to a process for producing components consisting of magnesium or magnesium alloy by sintering. This process makes it possible, for the first time, to produce components consisting of magnesium or magnesium alloy which provide outstanding elasticity together with a sufficient strength. Materials of this type can be used as biocompatible endosseous implant materials.Type: GrantFiled: April 23, 2010Date of Patent: November 26, 2013Assignee: Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbHInventors: Martin Wolff, Thomas Ebel, Norbert Hort
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Patent number: 8282748Abstract: The invention relates to a method for producing metal matrix composite materials, including at least one proportion of magnesium or one magnesium alloy and involving at least one production step in which a thixomolding ensues. According to the invention, an Mg2Si phase having a volume fraction of at least 2% is incorporated in a metal matrix preferably comprised of magnesium or of a magnesium alloy. The inventive method uses the thixomolding method for the in-situ production of a metallic composite material and is advantageous in that a broad range of adjustable volume fractions of the Mg2Si phase in the composite material results whereby enabling the properties of the composite material to be individually modified. The inventive metal matrix composite material is particularly suited for producing thermally stressed parts of motor vehicles such as pistons or the like.Type: GrantFiled: October 16, 2004Date of Patent: October 9, 2012Assignee: Mahle GmbHInventors: Florian Moll, Lutz Oemisch, Ulrich Bischofberger, Karl Ulrich Kainer, Norbert Hort, Hajo Dieringa, Hagen Frank
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Publication number: 20120195787Abstract: The present invention relates to single-phase solid solution magnesium alloys suitable for the applications as cast or wrought. These alloys are prepared by multi-microalloying with rare earth elements (including gadolinium, yttrium, dysprosium, samarium, lanthanum, cerium, neodymium and praseodymium). Each alloy contains 0.5 to less than 5 wt. % rare earth elements with a content of 0.05-2.0% by weight. The total amount of rare earth elements is controlled below 5% by weight in order for economical considerations. The amount of grain refiner calcium or zirconium is in the range of 0.05-0.6% by weight. These alloys can be prepared by die casting, permanent casting, chill casting, semi-solid processes, continuous casting and continuous twin roll casting.Type: ApplicationFiled: January 18, 2012Publication date: August 2, 2012Applicant: Helmholtz-Zentrum Geesthacht Zentrum fun Material-und Kustenforschung GmbHInventors: Yuanding Huang, Qiumin Peng, Norbert Hort, Karl U. Kainer
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Publication number: 20120195789Abstract: The present invention relates magnesium-aluminum based alloys having a small grain size and to a method of their production. The alloys are particularly useful in casting applications. The alloys comprise a grain refiner, the grain refiner having the chemical formula: Mg100-x-y-zAlxCyRz wherein R is an element selected from the group consisting of silicon, calcium, strontium or a rare earth element, x is from 10 to 60 At. %, y is from 5 to 50 At. %, and z is from 0 to 20 At. %, provided that x+y+z is less than 100 At. %.Type: ApplicationFiled: January 18, 2012Publication date: August 2, 2012Applicant: Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbHInventors: Yuanding Huang, Qiuming Peng, Norbert Hort, Karl U. Kainer
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Publication number: 20110313527Abstract: The invention relates to an implant from a magnesium alloy, in which porosity increases towards the core.Type: ApplicationFiled: August 11, 2009Publication date: December 22, 2011Applicant: AAP BIOMATERIALS GMBHInventors: Frank Witte, Norbert Hort, Marco Wolfstadter, Bernd Frohlich, Wolfgang Voith, Hans-Joachim Fischer
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Publication number: 20110172724Abstract: A biocompatible material from which solid structures such as for example screws or plates can be manufactured, which are used for fixing bone fractures or damage and display an adequate mechanical stability. A mixture of apatite and a magnesium alloy, in the form of chips or powder, is ground in a ball mill until a homogeneous mixture forms. The homogeneous mixture is consolidated in a second step. This can be carried out by extrusion or forging. The desired shape can then be extracted from the obtained solid material by machining.Type: ApplicationFiled: December 14, 2006Publication date: July 14, 2011Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBHInventors: Norbert Hort, Hajo Dieringa, Karl Ulrich Kainer
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Publication number: 20100274292Abstract: The present invention relates to a process for producing components consisting of magnesium or magnesium alloy by sintering. This process makes it possible, for the first time, to produce components consisting of magnesium or magnesium alloy which provide outstanding elasticity together with a sufficient strength. Materials of this type can be used as biocompatible endosseous implant materials.Type: ApplicationFiled: April 23, 2010Publication date: October 28, 2010Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GmbHInventors: Martin Wolff, Thomas Ebel, Norbert Hort
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Publication number: 20100054985Abstract: The present invention relates to a magnesium aluminum alloy with enhanced creep resistance. The alloy contains barium and calcium in low proportions, and possesses a higher creep resistance in comparison to alloys containing rare earth elements. The alloy may additionally include zinc, tin, lithium, manganese, yttrium, neodymium, cerium and/or praseodymium in proportions of up to 7% by weight, respectively.Type: ApplicationFiled: August 13, 2009Publication date: March 4, 2010Applicant: Gkss-Forschungszentrum Geesthacht GmbHInventors: HAJO DIERINGA, Norbert Hort, Karl U. Kainer
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Publication number: 20100000702Abstract: The present invention relates to an apparatus for determining the hot tearing susceptibility of metallic melts, comprising a casting mould, which has a first subvolume and a second subvolume, the second subvolume being formed as a tubular portion with a first end and a second end, the first end being connected to the first subvolume, comprising a measuring element, which extends into the second end of the tubular portion, and comprising a measuring device for recording a force on the measuring element and/or a change in position of the measuring element in the direction of extent of the tubular portion, the measuring device being coupled with the measuring element. The object of allowing an improved quantitative and qualitative determination of hot tearing susceptibility is achieved by the cross-sectional area of the tubular portion being reduced in the direction of the second end in each and every subportion of the tubular portion that may be selected substantially over the entire length.Type: ApplicationFiled: July 6, 2009Publication date: January 7, 2010Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBHInventors: Zisheng Zhen, Oliver Utke, Willi Punessen, Norbert Hort, Karl Ulrich Kainer
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Publication number: 20070104606Abstract: The invention relates to a method for producing metal matrix composite materials, including at least one proportion of magnesium or one magnesium alloy and involving at least one production step in which a thixomolding ensues. According to the invention, an Mg2Si phase having a volume fraction of at least 2% is incorporated in a metal matrix preferably comprised of magnesium or of a magnesium alloy. The inventive method uses the thixomolding method for the in-situ production of a metallic composite material and is advantageous in that a broad range of adjustable volume fractions of the Mg2Si phase in the composite material results whereby enabling the properties of the composite material to be individually modified. The inventive metal matrix composite material is particularly suited for producing thermally stressed parts of motor vehicles such as pistons or the like.Type: ApplicationFiled: October 16, 2004Publication date: May 10, 2007Inventors: Florian Moll, Lutz Oemisch, Ulrich Bischofberger, Karl Kainer, Norbert Hort, Hajo Dieringa, Hagen Frank