Patents by Inventor Marek Gorywoda
Marek Gorywoda 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: 7976804Abstract: A catalyst for the decomposition of N2O under the conditions of the Ostwald process, comprising a carrier and a coating made of rhodium, rhodium/palladium or rhodium oxide applied thereto, ensures to yield NO with a particularly low content of laughing gas as the first process product.Type: GrantFiled: January 9, 2009Date of Patent: July 12, 2011Assignee: W.C. Heraeus GmbHInventors: Uwe Jantsch, Jonathan Lund, Marek Gorywoda, Marcus Kraus
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Publication number: 20090130010Abstract: A catalyst for the decomposition of N2O under the conditions of the Ostwald process, comprising a carrier and a coating made of rhodium, rhodium/palladium or rhodium oxide applied thereto, ensures to yield NO with a particularly low content of laughing gas as the first process product.Type: ApplicationFiled: January 9, 2009Publication date: May 21, 2009Applicant: W.C. Haeraeus GmbHInventors: Uwe JANTSCH, Jonathan LUND, Marek GORYWODA, Marcus KRAUS
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Publication number: 20050202966Abstract: A catalyst for the decomposition of N2O under the conditions of the Ostwald process, comprising a carrier and a coating made of rhodium, rhodium/palladium or rhodium oxide applied thereto, ensures to yield NO with a particularly low content of laughing gas as the first process product.Type: ApplicationFiled: February 8, 2005Publication date: September 15, 2005Applicant: W.C. Heraeus GmbHInventors: Uwe Jantsch, Jonathan Lund, Marek Gorywoda, Marcus Kraus
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Patent number: 6649134Abstract: A process and a device for reducing the nitrous oxide which is formed during the catalytic combustion of ammonia and oxygen to form nitrogen oxides. A catalyst system including at least one first catalyst mesh element and at least one second catalyst mesh element is used for the catalytic combustion of ammonia and oxygen to form nitrogen oxides, where the minimum of one first catalyst mesh element is a platinum-rhodium mesh and the minimum of one second, downstream catalyst mesh element is a palladium-rhodium mesh with 2-4 wt. % of rhodium.Type: GrantFiled: December 17, 2001Date of Patent: November 18, 2003Assignee: W. C. Heraeus GmbH & Co. KGInventors: Marek Gorywoda, David Francis Lupton, Jonathan Lund
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Publication number: 20030124046Abstract: A process and a device for reducing the nitrous oxide which is formed during the catalytic combustion of ammonia and oxygen to form nitrogen oxides is provided, where a catalyst system consisting of at least one first catalyst mesh element and at least one second catalyst mesh element is used for the catalytic combustion of ammonia and oxygen to form nitrogen oxides, where the minimum of one first catalyst mesh element consists of platinum-rhodium mesh and the minimum of one second, downstream catalyst mesh element consists of palladium-rhodium mesh with 2-4 wt. % of rhodium.Type: ApplicationFiled: December 17, 2001Publication date: July 3, 2003Inventors: Marek Gorywoda, David Francis Lupton, Jonathan Lund
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Patent number: 6455020Abstract: The use of ceramic meshes is offered for spacing catalyst meshes apart from one another in the production of HCN, especially by the Andrussov process.Type: GrantFiled: August 31, 2000Date of Patent: September 24, 2002Assignee: W. C. Heraeus GmbH & Co. KGInventors: Marek Gorywoda, Jonathan Lund
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Patent number: 6408929Abstract: In the production of precision castings by centrifugal casting with controlled solidification, a melt is cast under vacuum or shield gas into a pre-heated mold (15) with a central gate (19) and several mold cavities proceeding from the gate toward the outer circumference (Da) of the mold (15). To prevent the formation of shrinkholes and porous areas in the castings, to save energy, and to increase the production rate, the mold (15) is operated at temperatures which decrease from the inside toward the outside. The mold consists of a material or material combination with a coefficient of thermal conductivity lower than that of copper. Before the melt is poured, the mold (15) is heated, starting from the gate (19), by a heating device (20), which projects into the gate, so that the gate (19) reaches a temperature which is a function of the material being cast. Heating is carried out at a rate sufficient to produce a temperature Gradient of at least 100° C., preferably of 200-600° C.Type: GrantFiled: May 4, 2001Date of Patent: June 25, 2002Assignees: Ald Vacuum Technologies AG, W. C. Heraeus GmbH & Co. KGInventors: Alok Choudhury, Harald Scholz, Matthias Blum, Georg Jarczyk, Marek Gorywoda, David Francis Lupton
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Publication number: 20010045267Abstract: In the production of precision castings by centrifugal casting with controlled solidification, a melt is cast under vacuum or shield gas into a preheated mold (15) with a central gate (19) and several mold cavities proceeding from the gate toward the outer circumference (Da) of the mold (15). To prevent the formation of shrinkholes and porous areas in the castings, to save energy, and to increase the production rate, the mold (15) is operated at temperatures which decrease from the inside toward the outside. The mold consists of a material or material combination with a coefficient of thermal conductivity lower than that of copper. Before the melt is poured, the mold (15) is heated, starting from the gate (19), by a heating device (20), which projects into the gate, so that the gate (19) reaches a temperature which is a function of the material being cast. Heating is carried out at a rate sufficient to produce a temperature gradient of at least 100° C., preferably of 200-600° C.Type: ApplicationFiled: May 4, 2001Publication date: November 29, 2001Applicant: ALD Vacuum Technologies AGInventors: Alok Choudhury, Harald Scholz, Matthias Blum, Georg Jarczyk, Marek Gorywoda, David Francis Lupton
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Patent number: 6250366Abstract: In the production of precision castings by centrifugal casting with controlled solidification, a melt is cast under vacuum or shield gas into a pre-heated mold (15) with a central gate (19) and several mold cavities proceeding from the gate toward the outer circumference (Da) of the mold (15). To prevent the formation of shrinkholes and porous areas in the castings, to save energy, and to increase the production rate, the mold (15) is operated at temperatures which decrease from the inside toward the outside. The mold consists of a material or material combination with a coefficient of thermal conductivity lower than that of copper. Before the melt is poured, the mold (15) is heated, starting from the gate (19), by a heating device (20), which projects into the gate, so that the gate (19) reaches a temperature which is a function of the material being cast. Heating is carried out at a rate sufficient to produce a temperature gradient of at least 100° C., preferably of 200-600° C.Type: GrantFiled: September 26, 1997Date of Patent: June 26, 2001Assignee: ALD Vacuum Technologies GmbHInventors: Alok Choudhury, Harald Scholz, Matthias Blum, Georg Jarczyk, Marek Gorywoda, David Francis Lupton
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Patent number: 6089051Abstract: Fine-mesh warp-knit fabrics of noble metal-containing wires with high specific surface areas, having good mechanical stability, are produced by warp-knitting noble metal-containing wires to form closed stitches, such that the warp-knit fabric has at least 14 stitches per inch, and such that in at least one of the knit weaves forming the warp-knit fabric, the noble metal-containing wires are laid down over at least three stitch spacings.Type: GrantFiled: November 10, 1993Date of Patent: July 18, 2000Assignee: W.C. Heraeus GmbHInventors: Marek Gorywoda, Michael Hormann, Gunter Lindenmayer, David Francis Lupton, Bruno Streb
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Patent number: 6080341Abstract: A process for making an indium-tin-oxide shaped body, comprising: (a) filling an indium-tin-oxide powder into a first flexible mold, the indium-tin-oxide powder having a specific BET surface of at most 3 m.sup.2 /g with a mean primary particle size of 0.03 .mu.m to 1.0 .mu.m and/or having a density of at least 40% of theoretical density after cold pressing at a pressure of 100 MPa and/or the indium-tin-oxide powder being made by reacting at least two reaction partners comprising a molten indium-tin-metal alloy as a first reaction partner and oxygen as a second reaction partner in a plasma arc in a plasma chamber provided with an inlet opening for the reaction partners and an outlet with a gas-supply device to obtain a material, and quenching the material at the outlet opening of the plasma chamber with a gas stream which cools the material at a cooling rate of 10.sup.5 K/s to 10.sup.8 K/s to +50.degree. C. to +400.degree. C.Type: GrantFiled: May 12, 1999Date of Patent: June 27, 2000Assignee: W.C. Heraeus GmbH & Co. KGInventors: Bernd Stenger, Marek Gorywoda, David Francis Lupton, Wolfram Graf, Wolfgang Jablonski
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Patent number: 6030507Abstract: A process for making a crystalline solid-solution powder which involves reacting at least two reactants in a plasma arc of a plasma chamber and blast-cooling the resultant product in a high velocity gas stream to form the powder. The first reactant is a molten metal alloy and the second reactant is a gas. The reaction is carried out in a plasma arc and the products rapidly cooled by a gas stream acting at the outlet opening of the plasma chamber. The crystalline solid-solution powder formed by the process has a low electrical resistivity. If an indium-tin alloy is used as the first reactant and oxygen as the second reactant, there is obtained an indium-tin-oxide (ITO) crystalline solid-solution powder which, when compacted to 40% of its theoretical density, has an electrical resistivity in the range of about 2 .OMEGA.cm. This ITO crystalline solid-solution powder is particularly suitable for preparing an ITO target, with high electrical conductivity and thus high achievable sputtering rates.Type: GrantFiled: May 14, 1998Date of Patent: February 29, 2000Assignee: W.C. Heraeus GmbH & Co. KGInventors: David Francis Lupton, Jorg Schielke, Marek Gorywoda, Bernard Serole, Friedhold Scholz