Patents by Inventor Werner Dobelin

Werner Dobelin 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).

  • Rotating valve
    Publication number: 20060191581
    Abstract: The rotating valve for high performance liquid chromatography (HPLC) has a stator with connections for the solvent reservoirs, pumps, chromatography columns etc. and a disc-shaped rotor with connecting grooves on the front face for selectively connecting different connections to one another. Said grooves are evenly distributed on two concentrical circles. The connecting grooves on the front face of the rotor are configured in the form of circular segments and are arranged in such a way that fife connections are simultaneously connected to one another in defined positions of the rotor in each circle.
    Type: Application
    Filed: April 2, 2004
    Publication date: August 31, 2006
    Inventors: Hansjorg Cueni, Heiner Scherrer, Werner Dobelin
  • Reaction chamber system for chemical synthesis or related applications
    Patent number: 6652813
    Abstract: In a reaction chamber is located a platform for receiving individual samples and sample racks. The reaction chamber can be heated, cooled and evacuated. The samples are then radiation heated. The sample platform is shaken by magnetic coupling. The individual sample containers/reaction containers may be filled or emptied in use thorough ducts. The system has applications in the field of chemical combinatory synthesis, as evaporator or for related applications.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: November 25, 2003
    Assignee: Hettlab AG
    Inventor: Werner Dobelin