Patents by Inventor Wendelin Jan Stark

Wendelin Jan Stark 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).

  • Patent number: 10156028
    Abstract: The present invention relates to the manufacturing gelatin fibers comprising the steps of: (a) preparing a two-phase composition as defined in the claims, (b) spinning the lower phase of said composition, (c) stretching the obtained fiber and (d) optional finishing steps; to new gelatin fibers and to the use thereof.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: December 18, 2018
    Assignee: ETH Zurich
    Inventors: Philipp R. Stoessel, Robert N. Grass, Wendelin Jan Stark
  • Publication number: 20180119220
    Abstract: The present invention relates to core-shell particles comprising encapsulated nucleic acids—a sensing sequence and a control sequence; the invention further relates to the use of such particles as a sensing element; to methods for measuring a property of interest in a setting employing such particles; to measuring systems and analytical kits comprising such particles.
    Type: Application
    Filed: April 19, 2016
    Publication date: May 3, 2018
    Applicant: ETH ZURICH
    Inventors: Robert N. GRASS, Wendelin Jan STARK, Gediminas MIKUTIS, Michela PUDDU
  • Patent number: 9850531
    Abstract: The present invention relates to a method for protecting and. recovering nucleic acids. This method may be applied in a verification method of products using molecular code systems or it may be applied in a storage method for nucleic acids. The invention further provides specific particles, their use in secure marking; products suitable for such verification method, to processes for manufacturing such products and methods for reading the information.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 26, 2017
    Assignee: ETH Zurich
    Inventors: Robert N. Grass, Wendelin Jan Stark
  • Patent number: 9694517
    Abstract: A ready-for-use metal reinforcer, for example, of the wire or cord type, made of brass-coated carbon steel, is capable of adhering directly by vulcanization to a matrix of unsaturated rubber such as natural rubber. The surface of the reinforcer is provided with nanoparticles of at least one sulfide of a metal chosen from cobalt, copper, iron, zinc and the alloys comprising at least one of these elements. Such a reinforcer can be used as the reinforcing element of a finished article made of rubber, such as a tire.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 4, 2017
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Antonio Delfino, Milan Fedurco, Jean Paul Meraldi, Robert Nikolaus Grass, Wendelin Jan Stark
  • Publication number: 20170158860
    Abstract: The present invention relates to methods for producing surface-modified calcium oxide particles having the production steps according to claim 1, novel calcium oxide particles obtained according to these methods, and uses thereof.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 8, 2017
    Inventor: Wendelin Jan STARK
  • Publication number: 20170137993
    Abstract: A threadlike metallic or metallized reinforcer, for example a thread, film, tape or cord made of carbon steel, at the periphery of which is positioned a layer of metal referred to as “surface metal” chosen from copper, nickel and copper/nickel alloys, is characterized in that this surface metal layer is itself coated, at least in part, with at least one layer of graphene; preferably, there is grafted, to this graphene, at least one functional group which can crosslink to a polymer matrix. This reinforcer of the invention is effectively protected from corrosion by virtue of the graphene present at the surface; advantageously, it can be adhesively bonded directly, without adhesion primer or addition of metal salt, to an unsaturated rubber matrix, such as natural rubber, by virtue of the possible functionalization of this graphene.
    Type: Application
    Filed: May 20, 2015
    Publication date: May 18, 2017
    Inventors: ROBERT NIKOLAUS GRASS, WENDELIN JAN STARK, MILAN FEDURCO, ANTONIO DELFINO, JEAN-PAUL MERALDI
  • Publication number: 20170121806
    Abstract: A process for depositing, with forward progression, graphene on the surface of a metallic or metallized continuous reinforcer, at the periphery of which is positioned a layer of surface metal chosen from copper, nickel and copper/nickel alloys, comprises at least one stage of flame spray pyrolysis (“FSP”), under a reducing atmosphere, of a carbon precursor which generates, in the flame, at least one carbon-based gas such as carbon monoxide which is sprayed onto the surface of the reinforcer in forward progression, and is decomposed thereon to form one or more graphene layers at the surface of the surface metal; an additional stage of graphene functionalization makes it possible to adhere the reinforcer to a polymer matrix such as rubber.
    Type: Application
    Filed: May 20, 2015
    Publication date: May 4, 2017
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: WENDELIN JAN STARK, ROBERT NIKOLAUS GRASS, Milan Fedurco, ANTONIO DELFINO, JEAN-PAUL MERALDI
  • Patent number: 9611175
    Abstract: The present invention relates to methods for producing surface-modified calcium oxide particles having the production steps according to claim 1, novel calcium oxide particles obtained according to these methods, and uses thereof.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 4, 2017
    Assignee: Kalkfabrik Nestal AG
    Inventor: Wendelin Jan Stark
  • Publication number: 20160250401
    Abstract: A pump having at least a fluid pump chamber (11) and a first driver chamber (12) separated from the fluid pump chamber (11) by an elastic wall (13, 13-1, 13-2) is described with the first driver chamber (12) expanding after a chemical reaction between fuel and oxidant and driving through deformation of the elastic wall fluid out of the fluid pump chamber (11), with the main parts of the pump being made of an elastic material to be used for example as a body implant.
    Type: Application
    Filed: October 1, 2014
    Publication date: September 1, 2016
    Inventors: Wendelin Jan STARK, Christoph SCHUMACHER, Roland FUHRER, Michael LOEPFE
  • Publication number: 20160242447
    Abstract: The present invention relates to food products which are dry and which contain a table salt formulation characterized in that said table salt formulation comprises a mixture of at least two types of particles of one or more physiologically acceptable inorganic salts and at least one of the type of said particles is composed of primary particles of which at least 50 wt % are 5-5000 nanometer in diameter; to manufacturing methods of such food products; further it relates to specific table salt formulations, to manufacturing methods and methods of use of such table salt formulations.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 25, 2016
    Inventors: Wendelin Jan STARK, Samuel Claude HALIM, Eapen GEORGE, Carlos Jose BARROSO
  • Patent number: 9352974
    Abstract: The present invention relates to food products which are dry and which contain a table salt formulation characterized in that said table salt formulation comprises a mixture of at least two types of particles of one or more physiologically acceptable inorganic salts and at least one of the type of said particles is composed of primary particles of which at least 50 wt % are 5-5000 nanometer in diameter; to manufacturing methods of such food products; further it relates to specific table salt formulations, to manufacturing methods and methods of use of such table salt formulations.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: May 31, 2016
    Assignee: Frito-Lay Trading Company, Gmbh
    Inventors: Wendelin Jan Stark, Samuel Claude Halim, Eapen George, Carlos Jose Barroso
  • Publication number: 20160130729
    Abstract: The present invention relates to the manufacturing gelatin fibers comprising the steps of: (a) preparing a two-phase composition as defined in the claims, (b) spinning the lower phase of said composition, (c) stretching the obtained fiber and (d) optional finishing steps; to new gelatin fibers and to the use thereof.
    Type: Application
    Filed: May 21, 2014
    Publication date: May 12, 2016
    Applicant: ETH ZURICH
    Inventors: Philipp R. Stoessel, Robert N. Grass, Wendelin Jan Stark
  • Publication number: 20150352900
    Abstract: A ready-for-use metal reinforcer, for example, of the wire or cord type, made of brass-coated carbon steel, is capable of adhering directly by vulcanization to a matrix of unsaturated rubber such as natural rubber. The surface of the reinforcer is provided with nanoparticles of at least one sulfide of a metal chosen from cobalt, copper, iron, zinc and the alloys comprising at least one of these elements. Such a reinforcer can be used as the reinforcing element of a finished article made of rubber, such as a tire.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 10, 2015
    Inventors: ANTONIO DELFINO, MILAN FEDURCO, JEAN PAUL MERALDI, ROBERT NIKOLAUS GRASS, WENDELIN JAN STARK
  • Publication number: 20150337136
    Abstract: The present invention relates to methods for producing surface-modified calcium oxide particles having the production steps according to claim 1, novel calcium oxide particles obtained according to these methods, and uses thereof.
    Type: Application
    Filed: October 18, 2013
    Publication date: November 26, 2015
    Inventor: Wendelin Jan STARK
  • Publication number: 20150307981
    Abstract: The surface of a body, in particular a metal reinforcer, at least the surface of which comprises a layer of metal referred to as surface metal capable of forming sulphides, is sulfurized. The metal can be chosen from copper, zinc and their alloys. The process comprises at least one stage of flame spray pyrolysis (FSP) of a sulphur-donating precursor, for example, thiophene, which generates hydrogen sulphide in the flame. The metal bodies or reinforcers thus treated can be directly adhesively bonded, without adhesion primer or addition of metal salt, such as a cobalt salt, to matrices of unsaturated rubber such as natural rubber.
    Type: Application
    Filed: December 16, 2013
    Publication date: October 29, 2015
    Inventors: ROBERT NIKOLAUS GRASS, MILAN FEDURCO, ANTONIO DELFINO, JEAN PAUL MERALDI, WENDELIN JAN STARK
  • Patent number: 9103762
    Abstract: The present invention relates to a method for detecting a target molecule in a sample by metal dissolution as described in the specification, said method using an electrical readout; to kits adapted for this method and to electrodes suitable for such kits and methods.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: August 11, 2015
    Assignee: ETH Zurich
    Inventors: Fabian Kohler, Robert Grass, Wendelin Jan Stark
  • Publication number: 20150030545
    Abstract: The present invention relates to a method for protecting and. recovering nucleic acids. This method may be applied in a verification method of products using molecular code systems or it may be applied in a storage method for nucleic acids. The invention further provides specific particles, their use in secure marking; products suitable for such verification method, to processes for manufacturing such products and methods for reading the information.
    Type: Application
    Filed: March 26, 2013
    Publication date: January 29, 2015
    Applicant: ETH ZURICH
    Inventors: Robert N. GRASS, Wendelin Jan STARK
  • Patent number: 8801936
    Abstract: The invention relates to a process for separating a dispersed phase from a continuous phase comprising the steps of i) contacting said phases with an effective amount of nanoparticles; ii) applying a magnetic field gradient to the obtained system; iii) separating the obtained phases wherein said nanoparticles are of the core shell type, said core consists of a metal or alloy having soft magnetic properties and said shell contains a graphene layers which are optionally functionalized; to new nanoparticles and method of manufacturing such nanoparticles.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: August 12, 2014
    Assignee: ETH Zürich
    Inventors: Robert N. Grass, Wendelin Jan Stark
  • Patent number: 8753601
    Abstract: Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP,Ca3(PO4)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: June 17, 2014
    Assignee: Eidgenossische Technische Hochschule Zurich
    Inventors: Wendelin Jan Stark, Sotiris-Emmanuel Pratsinis, Marek Maciejewski, Stefan Fridolin Loher, Alfons Baiker
  • Patent number: 8658188
    Abstract: Nanoparticulate material containing a matrix and embedded therein a radiopacifier are bioactive, show a high alkaline capacity and are radio-opaque. Compositions and formulations including such material are particularly useful in advanced dental applications, such as dental fillings and/or disinfection.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: February 25, 2014
    Assignees: Universitat Zurich
    Inventors: Wendelin Jan Stark, Dirk Mohn, Matthias Zehnder, Thomas Imfeld