Patents by Inventor Sotiris E. Pratsinis
Sotiris E. Pratsinis 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: 10667722Abstract: The fat burning analyzer includes a sampling part, an analysis unit and a processing unit. The sampling part collects a breath sample from the user, information on the conditions of the breath sample collection, and provides a sampling signal correlated to the collection condition of the breath sample. The analysis unit provides a detection signal corresponding to an acetone concentration in the collected breath sample and, as such, provides information on the breath acetone of the user (during exercise or resting). The processing unit receives the sampling signal and/or detection signal, and evaluates the sampling signal and/or the detection signal. The evaluation provides information correlated to the fat burning intensity of the user. These information can be provided as an output signal by the processing unit. Accordingly, the processing unit is equipped to provide an output signal correlated to the fat burning intensity of the user.Type: GrantFiled: November 29, 2017Date of Patent: June 2, 2020Assignee: ETH ZÜRICHInventors: Andreas T. Güntner, Sotiris E. Pratsinis
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Publication number: 20180146888Abstract: The fat burning analyzer includes a sampling part, an analysis unit and a processing unit. The sampling part collects a breath sample from the user, information on the conditions of the breath sample collection, and provides a sampling signal correlated to the collection condition of the breath sample. The analysis unit provides a detection signal corresponding to an acetone concentration in the collected breath sample and, as such, provides information on the breath acetone of the user (during exercise or resting). The processing unit receives the sampling signal and/or detection signal, and evaluates the sampling signal and/or the detection signal. The evaluation provides information correlated to the fat burning intensity of the user. These information can be provided as an output signal by the processing unit. Accordingly, the processing unit is equipped to provide an output signal correlated to the fat burning intensity of the user.Type: ApplicationFiled: November 29, 2017Publication date: May 31, 2018Inventors: Andreas T. Güntner, Sotiris E. Pratsinis
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Publication number: 20140178498Abstract: Proposed is a method for the production of at least one composite layer (7) in which nanoparticles are embedded in a polymer matrix, comprising the following steps: 1. in situ production and aerosol deposition of nano-particles onto a substrate (1) for the formation of a particle film (2) on the substrate (1); 2 immersing said particle film (2) with a polymer solution or a liquid polymer precursor material for the formation of the composite layer (7).Type: ApplicationFiled: June 13, 2012Publication date: June 26, 2014Applicant: ETH ZURICHInventors: Sotiris E. Pratsinis, Georgios Sotiriou, Christoph O. Blattmann
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Publication number: 20120168686Abstract: The invention relates to a continuous process for preparing carbon-coated lithium-iron-phosphate particles, wherein the carbon-coated lithium-iron-phosphate particles have a mean (d50) particle size of 10 to 150 nm, and wherein the carbon-coating is an acetylene-black coating, comprising performing in a reactor a flame-spray pyrolysis step (i) in a particle formation zone of the reactor, and a carbon-coating step (ii) in a carbon-coating zone of the reactor, wherein in (i) a combustible organic solution containing a mixture of lithium or a lithium compound; iron or an iron compound; and phosphorus or a phosphorous compound in an organic solvent, is fed through at least one nozzle where said organic solution is dispersed, ignited and combusted, to give a flame spray thereby forming an aerosol of lithium iron phosphate particles; (ii) acetylene gas is injected into said aerosol thereby forming an acetylene-black coating on the lithium iron phosphate particles; (iii) the coated particles are cooled by an inerType: ApplicationFiled: August 24, 2010Publication date: July 5, 2012Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Hans Joachim Metz, Oliver Waser, Robert Buechel, Sotiris E Pratsinis
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Publication number: 20120043124Abstract: The present invention relates to an electrical device comprising a substrate, a pair of electrodes arranged on the substrate and a functional layer arranged between the pair of electrodes, said functional layer comprising a functional domain being capable of transforming an external stimulus into an electrical signal or vice versa. The electrical device is characterized in that at least two conductive domains are dispersed in the functional layer. Said at least two conductive domains are separated from each other and are formed in each case by a particle or an agglomerate of particles of a conducting or semiconducting material having a higher electrical conductivity than the material of the functional domain. Each of the conductive domains form an electrically conductive path on the functional domain.Type: ApplicationFiled: April 22, 2010Publication date: February 23, 2012Applicant: ETH ZURICHInventors: Antonio Tricoli, Sotiris E Pratsinis
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Patent number: 8007758Abstract: Described is a method for the production of pure or mixed metal oxides, wherein at least one metal precursor that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3, e.g. the 2-ethyl hexanoic acid salt, is formed into droplets and e.g. flame oxidized. The method is performed at viscosities prior to droplet formation of usually less than 40 mPa s, obtained by heating and/or addition of one or more low viscosity solvents with adequately high enthalpy.Type: GrantFiled: May 20, 2003Date of Patent: August 30, 2011Assignee: ETH ZurichInventors: Jan Wendelin Stark, Sotiris E. Pratsinis
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Publication number: 20100102700Abstract: Flame spray pyrolysis can be performed using aqueous solvents for the delivery of metal and/or metalloid oxide precursors while obtaining desirably high flame temperatures for the synthesis of uniform submicron inorganic oxide particles. A multiple liquid channel nozzle can be used to deliver liquid for the formation of the aerosol that is combusted in the flame. One or both channels can deliver liquid with metal/metalloid precursors and/or organic fuels. Flame spray pyrolysis can be used to form metal tungsten oxide submicron particles. Metal tungsten oxide compositions can be used in the formation of transparent electrodes. If the transparent electrodes are formed from polymer inorganic particle composites, the composites can further comprise electrically conductive nanoparticles to improve the electrical conductivity.Type: ApplicationFiled: October 24, 2008Publication date: April 29, 2010Inventors: Abhishek Jaiswal, Frank O. Ernst, Shivkumar Chiruvolu, Jia X. Lee, Robert Buchel, Sotiris E. Pratsinis
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Publication number: 20090252965Abstract: A method for generating a chemically bonded organic functionality on the surface of particles or for condensing an organic compound onto the particle surface giving an organic coating is described. The method comprises a step of contacting a vapour containing an organic compound and a gaseous process stream containing flame-generated particles so as to react the organic compound with surface groups on the particles to give a chemically bonded organic functionality to the particle surface or so as to result in an organic coating.Type: ApplicationFiled: April 28, 2006Publication date: October 8, 2009Applicant: Eidgenössische Technische Hochschule ZürichInventors: Murray J. Height, Alexandra Teleki Harsanyi, Marc File, Sotiris E. Pratsinis
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Publication number: 20090131517Abstract: A flame spray pyrolysis method for producing a doped silica(SiO2) having antimicrobial and/or antibacterial and/or antifungal effect and being in the form of particles is disclosed. Said flame made doped silica comprises at least one functional dopant consisting of at least one antimicrobial and/or antibacterial and/or antifungal acting metal and/or metal-oxide, and is produced starting from a precursor solution comprising at least one functional dopant precursor, in particular a silver and/or copper comprising precursor, and at least one silica precursor in an organic solvent. Such doped silica is suitable for being incorporated within e.g. polymeric materials or for being used as impregnating material.Type: ApplicationFiled: February 9, 2006Publication date: May 21, 2009Inventors: Murray Height, Sotiris E. Pratsinis
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Patent number: 7396862Abstract: Dental composite filler materials comprise particles coated via an atomic layer deposition (ALD) process. The coating material has a different composition than the core particle. The difference in composition permits fine control over the refractive index of the coated particles, allowing good matching tooth enamel and to the binder materials used in the composite.Type: GrantFiled: February 6, 2004Date of Patent: July 8, 2008Inventors: Alan W. Weimer, Sotiris E. Pratsinis, Christos Angeletakis, Steven M. George
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Publication number: 20080160206Abstract: The present invention relates to dental composites comprising at least one nanoparticulate mixed oxide (a) of SiO2 with X-ray-opaque metal oxides of one or more elements selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu which has been prepared by flame spraying.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Inventors: Peter BURTSCHER, Lutz MADLER, Norbert MOSZNER, Sotiris E. PRATSINIS, Volker M. RHEINBERGER
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Patent number: 7335250Abstract: The present invention relates to dental composites comprising at least one nanoparticulate mixed oxide (a) of SiO2 with X-ray-opaque metal oxides of one or more elements selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu which has been prepared by flame spraying.Type: GrantFiled: September 29, 2004Date of Patent: February 26, 2008Assignee: Ivoclar Vivadent AGInventors: Peter Burtscher, Lutz Mädler, Norbert Moszner, Sotiris E. Pratsinis, Volker M. Rheinberger
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Patent number: 7211236Abstract: Described is a method for the production of metal oxides by flame spray pyrolysis, in particular mixed metal oxides such as ceria/zirconia, and metal oxides obtainable by said method. Due to high enthalpy solvents with a high carboxylic acid content said metal oxides have improved properties. For example ceria/zirconia has excellent oxygen storage capacity at high zirconium levels up to more than 80% of whole metal content.Type: GrantFiled: June 24, 2003Date of Patent: May 1, 2007Assignee: Eidgenossische Technische Hochschule ZurichInventors: Wendelin J. Stark, Lutz Mädler, Sotiris E. Pratsinis
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Publication number: 20040224087Abstract: Dental composite filler materials comprise particles coated via an atomic layer deposition (ALD) process. The coating material has a different composition than the core particle. The difference in composition permits fine control over the refractive index of the coated particles, allowing good matching tooth enamel and to the binder materials used in the composite.Type: ApplicationFiled: February 6, 2004Publication date: November 11, 2004Inventors: Alan W. Weimer, Sotiris E. Pratsinis, Christos Angeletakis, Steven M. George
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Publication number: 20040126298Abstract: Described is a method for the production of metal oxides, in particular mixed metal oxides such as ceria/zirconia, and metal oxides obtainable by said method. Due to high enthalpy solvents with a high carboxylic acid content said metal oxides have improved properties. For example ceria/zirconia has excellent oxygen storage capacity at high zirconium levels up to more than 80% of whole metal content.Type: ApplicationFiled: June 24, 2003Publication date: July 1, 2004Inventors: Wendelin J. Stark, Lutz Madler, Sotiris E. Pratsinis
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Patent number: 6254940Abstract: The present invention related to methods of manufacturing oxide, nitride, carbide, and boride powders and other ceramic, organic, metallic, carbon and alloy powders and films and their mixtures having well-controlled size and crystallinity characteristics. This invention relates, more particularly, to a development in the synthesis of the ceramic, metallic, composite, carbon and alloy nanometer-sized particles with precisely controlled specific surface area, or primary particle size, crystallinity and composition. The product made using the process of the present invention and the use of that product are also claimed herein.Type: GrantFiled: May 26, 1999Date of Patent: July 3, 2001Assignee: University of CincinnatiInventors: Sotiris E. Pratsinis, Srinivas Vemury
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Patent number: 5525320Abstract: Processes for the direct manufacture of nitride powders suitable for low temperature sintering are provided. An elemental vapor is contacted with a nitriding gas at temperatures between 1400 and 1973 K and atmospheric pressure to produce nitride powder.Type: GrantFiled: July 11, 1994Date of Patent: June 11, 1996Assignee: University of CincinnatiInventors: Sotiris E. Pratsinis, M. Kamal Akhtar, Guizhi Wang, Siddhartha Panda