Patents by Inventor Guido Ketteler

Guido Ketteler 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).

  • Preparation of iron (III) oxide pigment
    Patent number: 10479893
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 19, 2019
    Assignee: LANXESS Deutschland GmbH
    Inventors: Waldemar Czaplik, Guido Ketteler, Jurgen Kischkewitz
  • PREPARATION OF IRON (III) OXIDE PIGMENT
    Publication number: 20170292024
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).
    Type: Application
    Filed: September 4, 2015
    Publication date: October 12, 2017
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WALDEMAR CZAPLIK, GUIDO KETTELER, JURGEN KISCHKEWITZ
  • PREPARATION OF IRON (III) OXIDE PIGMENTS
    Publication number: 20170267544
    Abstract: The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).
    Type: Application
    Filed: September 4, 2015
    Publication date: September 21, 2017
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WALDEMAR CZAPLIK, GUIDO KETTELER, JURGEN KISCHKEWITZ
  • Method for producing finely divided haematite and for producing iron oxide red pigments
    Patent number: 9428402
    Abstract: The present invention relates to an improved process for the production of finely divided haematite and of iron oxide red pigments made up of the finely divided haematite and the use of the finely divided haematites and iron oxide red pigments produced by this process.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 30, 2016
    Assignee: LANXESS Deutschland GmbH
    Inventors: Guido Ketteler, Udo Holtmann, Juergen Kischkewitz
  • METHOD FOR PRODUCING FINELY DIVIDED HAEMATITE AND FOR PRODUCING IRON OXIDE RED PIGMENTS
    Publication number: 20140205664
    Abstract: The present invention relates to an improved process for the production of finely divided haematite and of iron oxide red pigments made up of the finely divided haematite and the use of the finely divided haematites and iron oxide red pigments produced by this process.
    Type: Application
    Filed: September 28, 2012
    Publication date: July 24, 2014
    Applicant: LANXESS DEUTSCHLAND GmbH
    Inventors: Guido Ketteler, Udo Holtmann, Juergen Kischkewitz