Patents by Inventor Joachim Roettle

Joachim Roettle 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).

  • Ceramic particles formed from perforated membranes
    Patent number: 10266755
    Abstract: Methods and apparatus for forming proppant particles which include providing an aqueous slurry of ceramic forming raw materials, flowing the slurry through a perforated membrane, which may be energized, to form slurry bodies, receiving the slurry bodies in a collecting hopper, and drying the slurry bodies to form particles. In some aspects, the slurry is energized as it flows through the perforated membrane.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 23, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Thomas Philip Barthelmess, Joachim Roettle
  • CERAMIC PARTICLES FORMED FROM PERFORATED MEMBRANES
    Publication number: 20160272880
    Abstract: Methods and apparatus for forming proppant particles which include providing an aqueous slurry of ceramic forming raw materials, flowing the slurry through a perforated membrane, which may be energized, to form slurry bodies, receiving the slurry bodies in a collecting hopper, and drying the slurry bodies to form particles. In some aspects, the slurry is energized as it flows through the perforated membrane.
    Type: Application
    Filed: November 14, 2014
    Publication date: September 22, 2016
    Inventors: Thomas Philip Barthelmess, Joachim Roettle