Patents by Inventor Andreas Scheybal

Andreas Scheybal 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).

  • Methods of generating manganese (III) ions in mixed aqueous acid solutions using ozone
    Patent number: 10889905
    Abstract: Manganese-(III) species is generated and regenerated in a mixed aqueous acid solution containing manganese-(II) species by injecting ozone gas in the mixed aqueous acid solution such that ozone oxidizes at least some of the manganese-(II) species to the manganese-(III) species with at least 60% Mn(III) generation efficiency. The acids include sulfuric acid and an alkane sulfonic acid. The aqueous acid solution containing manganese-(III) and manganese-(II) species is used to etch polymer materials. The etch is a chrome-free etch method.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 12, 2021
    Inventors: Andreas Scheybal, Katharina Weitershaus, Krishna Balantrapu
  • METHODS OF GENERATING MANAGESE (III) IONS IN MIXED AQUEOUS ACID SOLUTIONS USING OZONE
    Publication number: 20200181787
    Abstract: Manganese-(III) species is generated and regenerated in a mixed aqueous acid solution containing manganese-(II) species by injecting ozone gas in the mixed aqueous acid solution such that ozone oxidizes at least some of the manganese-(II) species to the manganese-(III) species with at least 60% Mn(III) generation efficiency. The acids include sulfuric acid and an alkane sulfonic acid. The aqueous acid solution containing manganese-(III) and manganese-(II) species is used to etch polymer materials. The etch is a chrome-free etch method.
    Type: Application
    Filed: October 4, 2019
    Publication date: June 11, 2020
    Inventors: Andreas SCHEYBAL, Katharina WEITERSHAUS, Krishna BALANTRAPU
  • Metallization inhibitors for plastisol coated plating tools
    Patent number: 9506150
    Abstract: The plastisol coated plating tools are used to secure polymer containing substrates in electroless plating baths during electroless plating of the polymers. To prevent metallization of the plastisol coated plating tools during electroless metallization, compositions of sulfur compounds are applied to the plastisol. After metallization the plastisol coated plating tools may be re-used without the need to strip the unwanted metal from the tools.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: November 29, 2016
    Inventors: Katharina Weitershaus, Andreas Scheybal, Wan Zhang-Beglinger
  • METALLIZATION INHIBITORS FOR PLASTISOL COATED PLATING TOOLS
    Publication number: 20160102403
    Abstract: The plastisol coated plating tools are used to secure polymer containing substrates in electroless plating baths during electroless plating of the polymers. To prevent metallization of the plastisol coated plating tools during electroless metallization, compositions of sulfur compounds are applied to the plastisol. After metallization the plastisol coated plating tools may be re-used without the need to strip the unwanted metal from the tools.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 14, 2016
    Inventors: Katharina Weitershaus, Andreas Scheybal, Wan Zhang-Beglinger
  • Chrome-free methods of etching organic polymers with mixed acid solutions
    Patent number: 9267077
    Abstract: A chrome-free acidic aqueous solution of sulfuric acid and one or more organic acids and manganese (II) and (III) ions is applied to an organic polymer surface to etch the surface. The etched surface is then plated with metal.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: February 23, 2016
    Inventors: Katharina Weitershaus, Wan Zhang-Beglinger, Andreas Scheybal, Jonas Guebey
  • Chrome-free methods of etching organic polymers
    Patent number: 8603352
    Abstract: A chrome-free composition of an acidic suspension of manganese compounds and manganese ions are applied to an organic polymer surface to etch the surface. The etched surface is then plated with metal.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: December 10, 2013
    Assignee: Rohm and Haas Electroncis Materials LLC
    Inventors: Wan Zhang-Beglinger, Katharina Weitershaus, Andreas Scheybal, Christos Comninellis