Patents by Inventor Friedrich Wilhelm Karau

Friedrich Wilhelm Karau 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).

  • Method for purifying elemental boron
    Patent number: 8790607
    Abstract: Elemental boron with a boron content of at least 96.8% by weight, an oxygen content of at most 1.6% by weight, a nitrogen content of at most 0.2% by weight, a crystallinity of 30% by weight or less, and a particle size distribution with a d100 value of 9 ?m or less.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: July 29, 2014
    Assignee: H. C. Starck GmbH
    Inventor: Friedrich Wilhelm Karau
  • MAGNESIUM DIBORIDE
    Publication number: 20110224085
    Abstract: An amorphous or a partially crystalline magnesium diboride comprising a crystalline material content of ?25% by weight as determined by an X-ray powder diffraction.
    Type: Application
    Filed: October 19, 2009
    Publication date: September 15, 2011
    Applicant: H.C. STARCK GMBH
    Inventor: Friedrich Wilhelm Karau
  • METHOD FOR PURIFYING ELEMENTAL BORON
    Publication number: 20110176983
    Abstract: Elemental boron with a boron content of at least 96.8% by weight, an oxygen content of at most 1.6% by weight, a nitrogen content of at most 0.2% by weight, a crystallinity of 30% by weight or less, and a particle size distribution with a d100 value of 9 ?m or less.
    Type: Application
    Filed: August 28, 2009
    Publication date: July 21, 2011
    Applicant: H.C. STARCK GMBH
    Inventor: Friedrich Wilhelm Karau