Patents by Inventor Gerhard Kastner

Gerhard Kastner 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).

  • Patent number: 7034158
    Abstract: The invention relates to a method for producing biperiden which is characterized in that an exo/endo mixture of 1-(bicyclo[2.2.1]hept-5-en-2-yl)-3-piperidino-1-propanone is reacted with an isomer ratio of the exo form to the endo form of at least 2.5:1 with diphenyl magnesium, an isomer mixture containing biperiden is obtained therefrom and biperiden is produced therefrom.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: April 25, 2006
    Assignee: Abbott GmbH & Co. KG
    Inventors: Gerhard Kastner, Klaus Scheib
  • Publication number: 20050176963
    Abstract: The invention relates to a method for producing biperiden which is characterised in that an exo/endo mixture of 1-(bicyclo[2.2.1]hept-5-en-2-yl)-3-piperidino-1-propanone is reacted with an isomer ratio of the exo form to the endo form of at least 2.5:1 with diphenyl magnesium, an isomer mixture containing biperiden is obtained therefrom and biperiden is produced therefrom.
    Type: Application
    Filed: May 17, 2002
    Publication date: August 11, 2005
    Inventors: Gerhard Kastner, Klaus Scheib
  • Patent number: 4350636
    Abstract: A process for the preparation of phenylacetonitriles, carrying basic substituents, of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: September 21, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Kastner, Hardo Siegel, Karl-Heinz Geiss