Patents by Inventor Zinaida Ponie Djodikromo

Zinaida Ponie Djodikromo 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).

  • Bleaching of substrates
    Patent number: 7976582
    Abstract: The present invention concerns the treatment of a cellulose material in the presence of a transition metal catalyst, hydrogen peroxide whilst maintaining the pH of the treatment mixture.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: July 12, 2011
    Assignee: Conopco, Inc.
    Inventors: Joaquim Manuel Henriques de Almeida, Herbert Bachus, Zinaida Ponie Djodikromo, Christian Doerfler, Ronald Hage, Joachim Lienke
  • Bleaching of substrates
    Patent number: 7972386
    Abstract: The present invention concerns bleaching of substrates with an aqueous solution of a water soluble salt of a preformed transition metal catalyst together with hydrogen peroxide.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: July 5, 2011
    Assignee: Conopco, Inc.
    Inventors: Joaquim Manuel Henriques de Almeida, Zinaida Ponie Djodikromo, Ronald Hage
  • BLEACHING OF SUBSTRATES
    Publication number: 20100101029
    Abstract: The present invention concerns the treatment of a cellulose material in the presence of a transition metal catalyst, hydrogen peroxide whilst maintaining the pH of the treatment mixture.
    Type: Application
    Filed: December 20, 2007
    Publication date: April 29, 2010
    Inventors: Joaquim Manuel Henriques de Almeida, Herbert Bachus, Zinaida Ponie Djodikromo, Christian Doerfler, Ronald Hage, Joachim Lienke
  • Bleaching of Substrates
    Publication number: 20090126121
    Abstract: The present invention concerns bleaching of substrates with an aqueous solution of a water soluble salt of a preformed transition metal catalyst together with hydrogen peroxide.
    Type: Application
    Filed: October 4, 2006
    Publication date: May 21, 2009
    Inventors: Joaquim Manuel Henriques de Almeida, Zinaida Ponie Djodikromo, Ronald Hage