Patents by Inventor Bernhard Graml

Bernhard Graml 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 producing 4-methyl pyrimidine
    Patent number: 6841672
    Abstract: A process is described for preparing 4-methylpyrimidine by reacting a 4,4-dialkoxy-2-butanone with a formamidine salt, optionally in the presence of a solvent or diluent, at temperatures of from 80 to 180° C. In this way, 4-methylpyrimidine can be obtained in a substantially simpler manner and at the same time in higher yields than are possible by means of existing processes.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: January 11, 2005
    Assignee: Degussa AG
    Inventors: Thomas Güthner, Bernhard Graml
  • Method for producing 4-methyl pyrimidine
    Publication number: 20040044209
    Abstract: A process is described for preparing 4-methylpyrimidine by reacting a 4,4-dialkoxy-2-butanone with a formamidine salt, optionally in the presence of a solvent or diluent, at temperatures of from 80 to 180° C. In this way, 4-methylpyrimidine can be obtained in a substantially simpler manner and at the same time in higher yields than are possible by means of existing processes.
    Type: Application
    Filed: June 18, 2003
    Publication date: March 4, 2004
    Inventors: Thomas Guthner, Bernhard Graml