Patents by Inventor Jürgen Spehn

Jürgen Spehn 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).

  • Mineral material powder with high dispersion ability and use of said mineral material powder
    Patent number: 11555122
    Abstract: The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: January 17, 2023
    Assignee: Omya International AG
    Inventors: Pierre Blanchard, Jean-Pierre Elgoyhen, Beat Karth, Holger Müller, Jürgen Spehn, Martin Brunner, Pascal Gonnon, Michael Tinkl
  • Mineral material powder with high dispersion ability and use of said mineral material powder
    Patent number: 10767055
    Abstract: The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: September 8, 2020
    Assignee: Omya International AG
    Inventors: Pierre Blanchard, Jean-Pierre Elgoyhen, Beat Karth, Holger Müller, Jürgen Spehn, Martin Brunner, Pascal Gonnon, Michael Tinkl
  • Process for improving particle size distribution of calcium carbonate-comprising material
    Patent number: 10723885
    Abstract: The present invention relates to a process for the preparation of an aqueous suspension comprising at least one calcium carbonate-comprising material, the calcium carbonate-comprising material having a ratio of particles having an average particle size d80 value to particles having an average particle size d20 value [d80/d20] in the range from 1.5 to 4 and the use of the calcium carbonate-comprising material in paper and board applications, in cosmetics, in caulks and sealants, in adhesives, in paints and coatings, in fibre applications, in plastics applications or for the replacement of PCC in general.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 28, 2020
    Assignee: OMYA INTERNATIONAL AG
    Inventors: Michael Pohl, Christian Rainer, Martin Brunner, Jürgen Spehn, Michael Tinkl, Dennis Werner, Armelle Senti-Wenk, Emmanuel Goutard
  • MINERAL MATERIAL POWDER WITH HIGH DISPERSION ABILITY AND USE OF SAID MINERAL MATERIAL POWDER
    Publication number: 20190276675
    Abstract: The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.
    Type: Application
    Filed: May 14, 2019
    Publication date: September 12, 2019
    Inventors: Pierre Blanchard, Jean-Pierre Elgoyhen, Beat Karth, Holger Müller, Jürgen Spehn, Martin Brunner, Pascal Gonnon, Michael Tinkl
  • Process for the production of a composite polymer material with increased filler content
    Patent number: 9868827
    Abstract: An inventive process for the production of a composite polymer material is provided allowing for the preparation of a composite polymer material with high filler content which may be used as a masterbatch.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: January 16, 2018
    Assignee: Omya International AG
    Inventors: Holger Müller, Jürgen Leonhardt, Jürgen Spehn, Eduard Michel
  • PROCESS FOR IMPROVING PARTICLE SIZE DISTRIBUTION OF CALCIUM CARBONATE-COMPRISING MATERIAL
    Publication number: 20170283619
    Abstract: The present invention relates to a process for the preparation of an aqueous suspension comprising at least one calcium carbonate-comprising material, the calcium carbonate-comprising material having a ratio of particles having an average particle size d80 value to particles having an average particle size d20 value [d80/d20] in the range from 1.5 to 4 and the use of the calcium carbonate-comprising material in paper and board applications, in cosmetics, in caulks and sealants, in adhesives, in paints and coatings, in fibre applications, in plastics applications or for the replacement of PCC in general.
    Type: Application
    Filed: September 28, 2015
    Publication date: October 5, 2017
    Inventors: Michael Pohl, Christian Rainer, Martin Brunner, Jürgen Spehn, Michael Tinkl, Dennis Werner, Armelle Senti-Wenk, Emmanuel Goutard
  • PROCESS FOR THE PRODUCTION OF A COMPOSITE POLYMER MATERIAL WITH INCREASED FILLER CONTENT
    Publication number: 20170190848
    Abstract: An inventive process for the production of a composite polymer material is provided allowing for the preparation of a composite polymer material with high filler content which may be used as a masterbatch.
    Type: Application
    Filed: March 23, 2017
    Publication date: July 6, 2017
    Applicant: Omya International AG
    Inventors: Holger Müller, Jürgen Leonhardt, Jürgen Spehn, Eduard Michel
  • Process for the production of a composite polymer material with increased filler content
    Patent number: 9637609
    Abstract: An inventive process for the production of a composite polymer material is provided allowing for the preparation of a composite polymer material with high filler content which may be used as a masterbatch.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: May 2, 2017
    Assignee: Omya International AG
    Inventors: Holger Müller, Jürgen Leonhardt, Jürgen Spehn, Eduard Michel
  • PROCESS FOR THE PRODUCTION OF A COMPOSITE POLYMER MATERIAL WITH INCREASED FILLER CONTENT
    Publication number: 20160017113
    Abstract: An inventive process for the production of a composite polymer material is provided allowing for the preparation of a composite polymer material with high filler content which may be used as a masterbatch.
    Type: Application
    Filed: April 3, 2014
    Publication date: January 21, 2016
    Inventors: Holger Müller, Jürgen Leonhardt, Jürgen Spehn, Eduard Michel
  • MINERAL MATERIAL POWDER WITH HIGH DISPERSION ABILITY AND USE OF SAID MINERAL MATERIAL POWDER
    Publication number: 20150000564
    Abstract: The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.
    Type: Application
    Filed: February 14, 2013
    Publication date: January 1, 2015
    Inventors: Pierre Blanchard, Jean-Pierre Elgoyhen, Beat Karth, Holger Müller, Jürgen Spehn, Martin Brunner, Pascal Gonnon, Michael Tinkl