Patents by Inventor Andreas Hof

Andreas Hof 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: 20230372103
    Abstract: A venous valve prosthesis for transporting a flow of body fluid in a vessel in a predetermined direction includes includes a hollow-cylindrical support structure. A skirt is connected to the support structure and forms a closed, circumferential jacket of the support structure. The prosthesis also includes a valve leaflet arrangement with a first valve leaflet and a second valve leaflet, each being connected to the skirt. A downstream edge of the first valve leaflet and a downstream edge of the second valve leaflet are opposite to each other and configured in such a manner that in a first state of the valve leaflet arrangement they form an opening for blood to flow through in the predetermined direction and in a second state of the valve leaflet arrangement the opening is closed and to prevent a backflow of blood in a direction opposite to the predetermined direction. A ratio of the inner diameter of the support structure to its length in the predetermined direction is at most 1.
    Type: Application
    Filed: April 9, 2021
    Publication date: November 23, 2023
    Inventors: Michael Stiehm, Wolfram Schmidt, Niels Grabow, Jonas Keiler, Maria Reumann, Andreas Wree, Andreas Hof, Heinz Mueller, Carsten Momma, Klaus-Peter Schmitz, Karsten Koop, Julia Schubert, Kerstin Lebahn, Sabine Illner, Sabine Kischkel, Jonathan Ortelt
  • Publication number: 20220273474
    Abstract: An implant includes a tubular discontinuous structure formed of a plurality of webs that at least partially extend in a longitudinal direction. The plurality of webs includes at least one joint element having a main web substantially extending in the longitudinal direction. There is a continuous gap in the main web. At least one bridge web is arranged next to the main web in a circumferential direction (U) and connected to the main web in the longitudinal direction (A) in front of and behind the gap.
    Type: Application
    Filed: July 27, 2020
    Publication date: September 1, 2022
    Inventors: Karsten Koop, Stephan Rothstock, André Hein, Paul Goebel, Imanol Flores, Andreas Hof
  • Publication number: 20220054260
    Abstract: A vascular implant, in particular a prosthetic heart valve, for providing valve function, has a stent structure with a proximal conical-convex inflow region, a distal, linear cylindrical outflow region, an intermediate transition region, and a corresponding valve arrangement. When the stent structure is in the expanded state, a higher maximum radial force exists in the inlet region in direct comparison to the lower maximum radial force in the outlet region and in the transition region.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 24, 2022
    Inventors: Karsten Koop, André Hein, Paul Goebel, Imanol Flores, Andreas Hof, Ulrich Sitz, Maik Neitzel, Thomas Kuske, Max Linde, Stephan Rothstock, Matteo Astorino, Giuseppe Pisani
  • Patent number: 10811178
    Abstract: A method for determining a current that flows through a load, wherein the current comprises a DC component and a dithering component, and the dithering component is modified in predetermined time intervals, comprises steps for recording a momentary current; determining a dithering parameter; and determining the current based on the momentary current and the dithering parameter.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: October 20, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Paul Bange, Thomas Maier, Gerald Kolar, Mohammad Kabany, Andreas Hof
  • Publication number: 20180350497
    Abstract: A method for determining a current that flows through a load, wherein the current comprises a DC component and a dithering component, and the dithering component is modified in predetermined time intervals, comprises steps for recording a momentary current; determining a dithering parameter; and determining the current based on the momentary current and the dithering parameter.
    Type: Application
    Filed: November 10, 2016
    Publication date: December 6, 2018
    Applicant: ZF Friedrichshafen AG
    Inventors: Paul Bange, Thomas Maier, Gerald Kolar, Mohammad Kabany, Andreas Hof