Patents by Inventor Dorothea Schwarz

Dorothea Schwarz 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).

  • Processing of chlorosilane flows containing boron
    Patent number: 8246925
    Abstract: The invention relates to a method for yielding boron-depleted chlorosilanes from a chlorosilane mixture containing boron by means of separation by distillation of a boron-enriched distillation flow. The invention further relate to a device for yielding boron-depleted chlorosilanes from a chlorosilane mixture containing boron.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: August 21, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Christoph Schwarz, Dorothea Schwarz, Hartwig Rauleder, Ingo Pauli, Andreas Nelte, Harald Seiler
  • PROCESSING OF CHLOROSILANE FLOWS CONTAINING BORON
    Publication number: 20100320072
    Abstract: The invention relates to a method for yielding boron-depleted chlorosilanes from a chlorosilane mixture containing boron by means of separation by distillation of a boron-enriched distillation flow. The invention further relate to a device for yielding boron-depleted chlorosilanes from a chlorosilane mixture containing boron.
    Type: Application
    Filed: January 22, 2008
    Publication date: December 23, 2010
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Christoph Schwarz, Dorothea Schwarz, Hartwig Rauleder, Ingo Pauli, Andreas Nelte, Harald Seiler