Patents by Inventor Andreas Keil

Andreas Keil 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 Preparation Of Pramipexole By Chiral Chromatography
    Publication number: 20080096939
    Abstract: A novel process for the preparation of S(?)-2-amino-6-propylamino-4,5,6,7-tetrahydrobenzothiazole (pramipexole).
    Type: Application
    Filed: June 29, 2005
    Publication date: April 24, 2008
    Inventors: Andreas Keil, Michael Schulte
  • Device for change-over switching of individual electric motors or groups of electric motors
    Patent number: 5590019
    Abstract: A device for change-over switching of electric motors has a housing and two safety disconnecting switch systems positioned adjacently to one another in the housing. A cover is slidably connected to the housing so as to cover one of the safety disconnecting switch systems respectively. A fuse holder with fuses is detachably connected to the housing. Each one of the safety disconnecting switch systems has receiving elements for receiving the fuses. The safety disconnecting switch systems are electrically connected to one another such that upon insertion of the fuses into the receiving elements of one of safety disconnecting switch systems the electric motors rotate in one rotational direction and that upon insertion of the fuses into the receiving elements of the other one of the safety disconnecting switch systems the electric motors rotate in the other rotational direction.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: December 31, 1996
    Assignee: Palitex Project-Company GmbH
    Inventors: Siegfried Fox, Andreas Keil