Patents by Inventor Jan Schiefler

Jan Schiefler 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).

  • Process for the preparation of high-purity magnesium hydroxide and magnesium oxide from magnesium alkoxides
    Patent number: 6569399
    Abstract: There is provided a process for producing high-purity magnesium hydroxide by reaction of magnesium or reactive magnesium compounds with hydroxy compounds yielding magnesium alkoxides, followed by hydrolysis to form magnesium hydroxide, or a process for producing magnesium oxide by calcination of magnesium hydroxide.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: May 27, 2003
    Assignee: SASOL Germany GmbH
    Inventors: Andrea Brasch, Klaus Diblitz, Kai Dölling, Tilo Feldbaum, Klaus Noweck, Jan Schiefler
  • Process for producing hydrotalcites and the metal oxides thereof
    Patent number: 6514473
    Abstract: A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolysing the resultant alcoholate mixture with water. The corresponding metal oxides can be produced by calcination.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: February 4, 2003
    Assignee: SASOL Germany GmbH
    Inventors: Klaus Noweck, Klaus Diblitz, Jan Schiefler, Andrea Brasch
  • PROCESS FOR THE PREPARATION OF HIGH-PURITY MAGNESIUM HYDROXIDE AND MAGNESIUM OXIDE FROM MAGNESIUM ALKOXIDES
    Publication number: 20020015677
    Abstract: There is provided a process for producing high-purity magnesium hydroxide by reaction of magnesium or reactive magnesium compounds with hydroxy compounds yielding magnesium alkoxides, followed by hydrolysis to form magnesium hydroxide, or a process for producing magnesium oxide by calcination of magnesium hydroxide.
    Type: Application
    Filed: June 24, 1998
    Publication date: February 7, 2002
    Inventors: ANDREA BRASCH, KLAUS DIBLITZ, KAI DOLLING, TILO FELDBAUM, KLAUS NOWECK, JAN SCHIEFLER
  • Process for producing hydrotalcites and the metal oxides thereof
    Publication number: 20010001653
    Abstract: A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolysing the resultant alcoholate mixture with water. The corresponding metal oxides can be produced by calcination.
    Type: Application
    Filed: December 12, 2000
    Publication date: May 24, 2001
    Inventors: Klaus Noweck, Klaus Diblitz, Jan Schiefler, Andrea Brasch