Patents by Inventor Annette Fuchs

Annette Fuchs 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).

  • Alkaline single ion conductors with high conductivity and transference number and methods for preparing the same
    Patent number: 9299501
    Abstract: A method of producing an alkaline single ion conductor with high conductivity includes: a) providing a hydrocarbon oligomer or polymer having immobilized acidic substituent groups selected from the group consisting of a sulfonic acid group, sulfamide group, a phosphonic acid group, or a carboxy group, in its alkaline ion form wherein at least a part of the acidic protons of the substituent groups have been exchanged against alkali cations, and b) solvating the hydrocarbon oligomer or polymer of step a) in an aprotic polar solvent for a sufficient time to effect a solvent uptake of at least 5% by weight and to obtain a solvated product, wherein the molar ratio of solvent/alkaline cation is 1:1 to 10,000:1, and which solvated product has a conductivity of at least 10?5 S/cm at room temperature (24° C.).
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 29, 2016
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Annette Fuchs, Klaus-Dieter Kreuer, Joachim Maier, Andreas Wohlfarth
  • ALKALINE SINGLE ION CONDUCTORS WITH HIGH CONDUCTIVITY AND TRANSFERENCE NUMBER AND METHODS FOR PREPARING THE SAME
    Publication number: 20130216936
    Abstract: A method of producing an alkaline single ion conductor with high conductivity includes: a) providing a hydrocarbon oligomer or polymer having immobilized acidic substituent groups selected from the group consisting of a sulfonic acid group, sulfamide group, a phosphonic acid group, or a carboxy group, in its alkaline ion form wherein at least a part of the acidic protons of the substituent groups have been exchanged against alkali cations, and b) solvating the hydro-carbon oligomer or polymer of step a) in an aprotic polar solvent for a sufficient time to effect a solvent uptake of at least 5% by weight and to obtain a solvated product, wherein the molar ratio of solvent/alkaline cation is 1:1 to 10,000:1, and which solvated product has a conductivity of at least 10?5 S/cm at room temperature (24° C.).
    Type: Application
    Filed: November 2, 2011
    Publication date: August 22, 2013
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Annette Fuchs, Klaus-Dieter Kreuer, Joachim Maier, Andreas Wohlfarth
  • Proton conductors which are thermally stable over a wide range and have good proton conductivities
    Patent number: 6264857
    Abstract: Proton conductors comprising from 1 to 99% by weight of an acid and from 99 to 1% by weight of a nonaqueous amphoteric material which are thermally stable from −50° C. to 400° C. and have a proton conductivity of ≧10−5 S/cm. The invention further relates to membranes comprising the proton conductors of the invention, processes for preparing the membranes and their use in electrochromic cells, secondary batteries and electrochromic displays.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: July 24, 2001
    Assignee: Aventis R search & Technology GmbH & Co. KG
    Inventors: Klaus-Dieter Kreuer, Annette Fuchs, Joachim Maier, Georg Frank, Thomas Soczka-Guth, Joachim Clauss