Patents by Inventor Alexander Landner

Alexander Landner 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 dissolving an oxide layer
    Patent number: 9502146
    Abstract: The invention relates to a process for dissolving a chromium, iron, nickel, zinc and radionuclides containing oxide layer, in particular for breaking down oxide layers deposited on inner surfaces of systems and components of a nuclear power plant, by means of an aqueous decontamination solution containing methanesulfonic acid, which flows in a loop, wherein in regular intervals small amounts of permanganic acid are added, and following reaction of the permanganic acid a second loop is added on in bypass and the dissolved cations and anions are removed by ion-exchange resins from the decontamination solution.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 22, 2016
    Assignees: NIS INGENIEURGESELLSCHAFT MBH
    Inventors: Horst-Otto Bertholdt, Alexander Landner, Andreas Loeb, Hartmut Runge, Dieter Stanke
  • Process for dissolving an oxide layer
    Publication number: 20140338696
    Abstract: The invention relates to a process for dissolving a chromium, iron, nickel, zinc and radionuclides containing oxide layer, in particular for breaking down oxide layers deposited on inner surfaces of systems and components of a nuclear power plant, by means of an aqueous decontamination solution containing methanesulfonic acid, which flows in a loop, wherein in regular intervals small amounts of permanganic acid are added, and following reaction of the permanganic acid a second loop is added on in bypass and the dissolved cations and anions are removed by ion-exchange resins from the decontamination solution.
    Type: Application
    Filed: March 7, 2014
    Publication date: November 20, 2014
    Inventors: Horst-Otto BERTHOLD, Alexander Landner, Andreas LOEB, Hartmut Runge, Dieter STANKE