Patents by Inventor Karl Fehr

Karl Fehr 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).

  • Process for the preparation of lithium titanium spinel and its use
    Patent number: 9187336
    Abstract: Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: November 17, 2015
    Assignee: Sued-Chemie IP GmbH & Co. KG
    Inventors: Michael Holzapfel, Andreas Laumann, Gerhard Nuspl, Karl Fehr, Florian Kiefer
  • PROCESS FOR THE PREPARATION OF LITHIUM TITANIUM SPINEL AND ITS USE
    Publication number: 20140209834
    Abstract: Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: SUED-CHEMIE IP GMBH & CO. KG
    Inventors: Michael Holzapfel, Andreas Laumann, Gerhard Nuspl, Karl Fehr, Florian Kiefer
  • PROCESS FOR THE PREPARATION OF LITHIUM TITANIUM SPINEL AND ITS USE
    Publication number: 20110189545
    Abstract: Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.
    Type: Application
    Filed: June 3, 2009
    Publication date: August 4, 2011
    Applicant: SÜD-CHEMIE AG
    Inventors: Michael Holzapfel, Andreas Laumann, Gerhard Nuspl, Karl Fehr, Florian Kiefer