Patents by Inventor Fritz Lehner

Fritz Lehner 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).

  • Blend of surface modified calcium carbonate comprising particles (MCC) and precipitated calcium carbonate comprising particles (PCC) and its uses
    Patent number: 11292915
    Abstract: The present invention relates to a process for producing an aqueous slurry comprising a blend of surface modified calcium carbonate comprising particles (MCC) and precipitated calcium carbonate comprising particles (PCC), an aqueous slurry comprising the blend, as well as the blend obtainable by drying the aqueous slurry and their uses in paper, paper coating, tissue paper, digital photo paper, paints, coatings, adhesives, plastics, waste water treating or waste water treating agents.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: April 5, 2022
    Assignee: Omya International AG
    Inventors: Dennis Werner, Fritz Lehner, Alain Cremaschi
  • BLEND OF SURFACE MODIFIED CALCIUM CARBONATE COMPRISING PARTICLES (MCC) AND PRECIPITATED CALCIUM CARBONATE COMPRISING PARTICLES (PCC) AND ITS USES
    Publication number: 20180051175
    Abstract: The present invention relates to a process for producing an aqueous slurry comprising a blend of surface modified calcium carbonate comprising particles (MCC) and precipitated calcium carbonate comprising particles (PCC), an aqueous slurry comprising the blend, as well as the blend obtainable by drying the aqueous slurry and their uses in paper, paper coating, tissue paper, digital photo paper, paints, coatings, adhesives, plastics, waste water treating or waste water treating agents.
    Type: Application
    Filed: April 4, 2016
    Publication date: February 22, 2018
    Inventors: Dennis Werner, Fritz Lehner, Alain Cremaschi
  • Surface modified calcium carbonate containing minerals and its use
    Patent number: 9650517
    Abstract: The present invention is related to ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, the process for preparing such ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, and their use.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: May 16, 2017
    Assignee: Omya International AG
    Inventors: Daniel Edward Gerard, Joachim Schoelkopf, Patrick Arthur Charles Gane, Fritz Lehner, Dennis Werner
  • Surface modified calcium carbonate containing minerals and its use
    Patent number: 9637637
    Abstract: The present invention is related to ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, the process for preparing such ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, and their use.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 2, 2017
    Assignee: Omya International AG
    Inventors: Daniel Edward Gerard, Joachim Schoelkopf, Patrick Arthur Charles Gane, Fritz Lehner, Dennis Werner
  • SURFACE MODIFIED CALCIUM CARBONATE CONTAINING MINERALS AND ITS USE
    Publication number: 20170009077
    Abstract: The present invention is related to ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, the process for preparing such ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, and their use.
    Type: Application
    Filed: September 22, 2016
    Publication date: January 12, 2017
    Applicant: Omya International Ag
    Inventors: Daniel Edward Gerard, Joachim Schoelkopf, Patrick Arthur Charles Gane, Fritz Lehner, Dennis Werner
  • SURFACE MODIFIED CALCIUM CARBONATE CONTAINING MINERALS AND ITS USE
    Publication number: 20150175806
    Abstract: The present invention is related to ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, the process for preparing such ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, and their use.
    Type: Application
    Filed: July 10, 2013
    Publication date: June 25, 2015
    Inventors: Daniel Edward Gerard, Joachim Schoelkopf, Patrick Arthur Charles Gane, Fritz Lehner, Dennis Werner