Patents by Inventor Thomas Tobien

Thomas Tobien 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).

  • Self-washing injection apparatus
    Patent number: 6526812
    Abstract: Self-washing injection apparatus [101] for liquid chromatography injection valves utilizes an interior chamber [105] with a penetrable seal [109] at the top end of the chamber and a needle sleeve seal [113] at the bottom end of the interior chamber. A wash port [145] in the body [103] of the apparatus connects one or more sources of wash fluid to the interior chamber between the penetrable seal and the sleeve seal. The apparatus provides a simple and effective means to aspirate or pump wash fluids from one or more wash fluid reservoirs through the apparatus, the injection port of the injection valve, and associated components.
    Type: Grant
    Filed: July 14, 2001
    Date of Patent: March 4, 2003
    Assignee: Leap Technologies, Inc.
    Inventors: Werner Martin, Thomas Tobien
  • SELF-WASHING INJECTION APPARATUS
    Publication number: 20030010098
    Abstract: Self-washing injection apparatus [101] for liquid chromatography injection valves utilizes an interior chamber [105] with a penetrable seal [109] at the top end of the chamber and a needle sleeve seal [113] at the bottom end of the interior chamber. A wash port [145] in the body [103] of the apparatus connects one or more sources of wash fluid to the interior chamber between the penetrable seal and the sleeve seal. The apparatus provides a simple and effective means to aspirate or pump wash fluids from one or more wash fluid reservoirs through the apparatus, the injection port of the injection valve, and associated components.
    Type: Application
    Filed: July 14, 2001
    Publication date: January 16, 2003
    Inventors: Werner Martin, Thomas Tobien