Patents by Inventor Oleg Sprenger

Oleg Sprenger 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).

  • Electrodeposition method with analysis of the electrolytic bath by solid phase extraction
    Patent number: 9057145
    Abstract: A method for electrodepositing a metal layer from an electrolytic bath is described, wherein the concentrations of at least two components of the electrolytic bath are monitored by carrying out the following steps: (a) a sample is taken from the electrolytic bath; (b) the sample is supplied to a column for solid phase extraction, which contains a solid sorbent material; (c) the column is subjected to a washing procedure with a first eluent, wherein the at least two components remain on the column, and undesired components are eluted from the column; (d) the at least two components are eluted from the column by a second eluent; (e) the concentrations of the at least two components in the eluate obtained in step (d) are determined without separating the components from each other. In this method the use of poly(divinyl benzene-co-N-vinyl pyrrolidone) for solid phase extraction is particularly advantageous.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 16, 2015
    Assignee: Atotech Deutschland GmbH
    Inventors: Jürgen Barthelmes, Robert Rüther, Florence Lagorce-Broc, Olaf Kurtz, Oleg Sprenger, Marta Sainz-Vila, Thomas Moritz, Josef Gaida
  • Electrodeposition method with analysis of the electrolytic bath by solid Phase Extraction
    Publication number: 20100059384
    Abstract: A method for electrodepositing a metal layer from an electrolytic bath is described, wherein the concentrations of at least two components of the electrolytic bath are monitored by carrying out the following steps: (a) a sample is taken from the electrolytic bath; (b) the sample is supplied to a column for solid phase extraction, which contains a solid sorbent material; (c) the column is subjected to a washing procedure with a first eluent, wherein the at least two components remain on the column, and undesired components are eluted from the column; (d) the at least two components are eluted from the column by a second eluent; (e) the concentrations of the at least two components in the eluate obtained in step (d) are determined without separating the components from each other. In this method the use of poly(divinyl benzene-co-N-vinyl pyrrolidone) for solid phase extraction is particularly advantageous.
    Type: Application
    Filed: December 10, 2007
    Publication date: March 11, 2010
    Applicant: Atotech Deutschland GmbH
    Inventors: Jürgen Barthelmes, Robert Rüther, Florence Lagorce-Broc, Olaf Kurtz, Oleg Sprenger, Marta Sainz-Vila, Thomas Moritz, Josef Gaida