Patents by Inventor Sonja Kirchner

Sonja Kirchner 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).

  • Method for producing [Ir(cod)Cl]2
    Patent number: 6399804
    Abstract: A method for producing [Ir(cod)Cl]2 is proposed, involving a) Dissolving IrCl4.nH2O and/or IrCl3.nH2O and/or H2IrCl6 in water; b) Adding an alcohol and cycloocta-1,5-diene and c) Stirring the solution at the boiling temperature, characterized in that in step b) at least one alcohol is used having the formula R—OH wherein R=CnH2n+1 and n=3−9, especially isopropanol.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: June 4, 2002
    Assignee: W.C. Heraeus GmbH & Co. KG
    Inventors: Richard Walter, Sonja Kirchner, Renate Franz
  • Method for producing [IrcodC1]2
    Publication number: 20010020107
    Abstract: A method for producing [Ir(cod)Cl]2 is proposed, involving
    Type: Application
    Filed: January 9, 2001
    Publication date: September 6, 2001
    Inventors: Richard Walter, Sonja Kirchner, Renate Franz