Patents by Inventor Uwe Kutzler

Uwe Kutzler 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).

  • Tungstic acid powder consisting of spherical tungsten particles and method for producing same
    Patent number: 8454931
    Abstract: Process for the production of a powdered spherical tungstic acid by acidification of an aqueous alkaline tungstate solution with mineral acid at elevated temperature, preferably in a continuous stirred tank or a cascade of at least 2 continuous stirred tanks, and tungstic acid obtainable in this way, which is characterized by a high bulk density and spherical morphology.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 4, 2013
    Assignee: H.C. Starck GmbH
    Inventors: Sven Albrecht, Armin Olbrich, Michael Reiβ, Frank Schrumpf, Juliane Meese-Marktscheffel, Uwe Kutzler
  • TUNGSTIC ACID POWDER CONSISTING OF SPHERICAL TUNGSTEN PARTICLES AND METHOD FOR PRODUCING SAME
    Publication number: 20120045647
    Abstract: Process for the production of a powdered spherical tungstic acid by acidification of an aqueous alkaline tungstate solution with mineral acid at elevated temperature, preferably in a continuous stirred tank or a cascade of at least 2 continuous stirred tanks, and tungstic acid obtainable in this way, which is characterised by a high bulk density and spherical morphology.
    Type: Application
    Filed: September 23, 2011
    Publication date: February 23, 2012
    Applicant: H.C. Starck GmbH
    Inventors: Sven Albrecht, Armin Olbrich, Michael Reib, Frank Schrumpf, Juliane Meese-Marktscheffel, Uwe Kutzler
  • Tungstic acid powder consisting of spherical tungsten particles and method for producing same
    Patent number: 8052956
    Abstract: Process for the production of a powdered spherical tungstic acid by acidification of an aqueous alkaline tungstate solution with mineral acid at elevated temperature, preferably in a continuous stirred tank or a cascade of at least 2 continuous stirred tanks, and tungstic acid obtainable in this way, which is characterized by a high bulk density and spherical morphology.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 8, 2011
    Assignee: H. C. Starck GmbH
    Inventors: Sven Albrecht, Armin Olbrich, Michael Reiss, Frank Schrumpf, Juliane Meese-Marktscheffel, Uwe Kutzler
  • RECYCLING OF SUPERALLOYS WITH THE AID OF AN ALKALI METAL SALT BATH
    Publication number: 20090255372
    Abstract: The invention relates to a process for recovering valuable metals from a superalloy which has the steps of digesting the superalloy in a salt melt. The salt melt contains 60-95% by weight of NaOH and 5-40% by weight of Na2SO4.
    Type: Application
    Filed: June 29, 2007
    Publication date: October 15, 2009
    Applicant: H.C. STARCK GMBH
    Inventors: Armin Olbrich, Juliane Meese-Marktscheffel, Matthias Jahn, Rüdiger Zertani, Viktor Stoller, Michael Erb, Karl-Heinz Heine, Uwe Kutzler
  • Tungstic Acid Powder Consisting of Spherical Tungsten Particles and Method for Producing Same
    Publication number: 20070224096
    Abstract: Process for the production of a powdered spherical tungstic acid by acidification of an aqueous alkaline tungstate solution with mineral acid at elevated temperature, preferably in a continuous stirred tank or a cascade of at least 2 continuous stirred tanks, and tungstic acid obtainable in this way, which is characterised by a high bulk density and spherical morphology.
    Type: Application
    Filed: April 28, 2005
    Publication date: September 27, 2007
    Applicant: H.C. Starck GmbH & Co. KG
    Inventors: Sven Albrecht, Armin Olbrich, Michael Reib, Frank Schrumpf, Juliane Meese-Marktscheffel, Uwe Kutzler