Patents by Inventor Wolfgang Sigmund

Wolfgang Sigmund 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: 20210081943
    Abstract: There is provided a computer implemented method of providing a transaction receipt. The method comprises, at an issuer: receiving a transaction request from a card holder originating from a merchant payment device; authorising the transaction; setting an ePOS enable flag that indicates whether electronic POS receipting is enabled for the card holder's account at the issuer; storing an electronic POS receipt at the issuer if the ePOS enable flag indicates that ePOS is enabled; and communicating the authorised transaction with the ePOS enable flag to a payment network for routing to the merchant payment device.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 18, 2021
    Inventors: Marie KEEGAN, Kalyan KOMMANAPALLI, Tomasz WARDZIAK, Luca BUSSOLOTTI, Matthias Wolfgang SIGMUND
  • Patent number: 10810555
    Abstract: A method for authorizing and processing payment transactions over a network, the method comprising the steps of initiating, responsive to a user payment request to process a payment for a purchase on a merchants web site, a user interface, establishing a secure communication channel between the interface and an account server, the account server having stored a profile of an registered user, submitting, by the user interface, purchase information of the purchase order to the account server, requesting, by the account server through the user interface, authentication of the user, linking, at the account server, purchase information to the user profile, requesting, through the user interface, purchase confirmation by the user, requesting, by the user interface, a checkout reference for the confirmed purchase order from the account server, submitting, at least part of the purchase information and the checkout reference to a payment service provider to process the transaction.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 20, 2020
    Assignee: MASTERCARD INTERNATIONAL INCORPORATED
    Inventor: Matthias Wolfgang Sigmund
  • Publication number: 20170372275
    Abstract: A method for authorizing and processing payment transactions over a network, the method comprising the steps of initiating, responsive to a user payment request to process a payment for a purchase on a merchants web site, a user interface, establishing a secure communication channel between the interface and an account server, the account server having stored a profile of an registered user, submitting, by the user interface, purchase information of the purchase order to the account server, requesting, by the account server through the user interface, authentication of the user, linking, at the account server, purchase information to the user profile, requesting, through the user interface, purchase confirmation by the user, requesting, by the user interface, a checkout reference for the confirmed purchase order from the account server, submitting, at least part of the purchase information and the checkout reference to a payment service provider to process the transaction.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 28, 2017
    Inventor: Matthias Wolfgang Sigmund
  • Publication number: 20130074698
    Abstract: Embodiments of the present disclosure relate to microwave filter air purification systems, methods of using the microwave filter air purification systems, microwave absorbing filter packs, methods of degrading a contaminant, and the like.
    Type: Application
    Filed: June 13, 2011
    Publication date: March 28, 2013
    Inventors: Chang-Yu Wu, Wolfgang Sigmund, Chang Yul Cha, Johannes C.M. Marijnissen
  • Publication number: 20080045770
    Abstract: A photocatalyst nanocomposite which can be used to destroying biological agents includes a carbon nanotube core, and a photocatalyst coating layer covalently or ionically bound to a surface of the nanotube core. The coating layer has a nanoscale thickness. A method of forming photocatalytic nanocomposites includes the steps of providing a plurality of dispersed carbon nanotubes, chemically oxidizing the nanotubes under conditions to produce surface functionalized nanotubes to provide C and O including groups thereon which form ionic or covalent bonds to metal oxides, and processing a metal oxide photocatalyst sol-gel precursor in the presence of the nanotubes, wherein a nanoscale metal oxide photocatalyst layer becomes covalently or ionically bound to the nanotubes.
    Type: Application
    Filed: August 31, 2005
    Publication date: February 21, 2008
    Inventors: Wolfgang Sigmund, Sung-Hwan Lee, Benjamin Koopman, Brij Moudgil, Georgios Pyrgiotakis, Vijay Krishna
  • Publication number: 20050276962
    Abstract: Ultralyophobe interfaces that are substantially inert to contaminants, thereby resulting in surfaces that are hydrophobic and/or lyophobic. The substrates include a substrate surface and have a bonding layer and a plurality of flexible fibers bound to the bonding layer. The flexible fibers have an elastic modulus and an aspect ratio, wherein as the elastic modulus of the fiber increases, the aspect ratio increases such that the flexible fibers bend upon contact of a liquid surface.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 15, 2005
    Applicant: University of Florida Research Foundation, Inc.
    Inventors: Wolfgang Sigmund, Joachim Spatz
  • Publication number: 20050115658
    Abstract: A method of joining components includes the steps of providing a slurry including a solvent, a ceramic, metal or cermet powder and at least one binder selected from natural monomers or cross linkable polymer compositions. The binder is crosslinked to form a gel. The gel is then placed between the first and at least a second component to be joined. The gel is then sintered to form an article having a gelcast joint binding the first and second components. The resulting joint region will generally have the same strength as the first and second components.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 2, 2005
    Inventors: Amit Daga, Wolfgang Sigmund
  • Patent number: 6489017
    Abstract: The invention relates to a method for producing a solid molded article, in particular a ceramic and/or metallic article made of pulverized particles. The invention also relates to stable dispersions of pulverized particles in an aqueous fluid medium, solid molded articles made of pulverized particles, and sintered ceramic and/or metallic molded articles.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: December 3, 2002
    Assignee: Max-Planck-Gesellschaft zur Fulderung der Wissenschaften E.V.
    Inventors: Fritz Aldinger, Wolfgang Sigmund, Joseph Yanez
  • Patent number: 5473008
    Abstract: The invention relates to a casting composition comprising a ceramic powder, an organic solvent, binder, plasticizer and a dispersant, which composition is suitable for producing green ceramic sheets by the tape casting process. The dispersant present in the casting composition of the invention is a polyvinyl alcohol/fatty acid ester having a degree of conversion in the range from 50 to 100%. The invention also relates to the use of such a casting composition for producing ceramic green sheets and a process for producing ceramic substrates using a green sheet thus produced.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: December 5, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Friedrich Hessel, Katharina Seitz, Andreas Roosen, Gerhard Wegner, Wolfgang Meyer, Wolfgang Sigmund