Patents by Inventor Bruno Hardmeier

Bruno Hardmeier 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).

  • Pipette and pipetting apparatus
    Patent number: 4967604
    Abstract: A pipette includes a pipette body made of plastic material and a pipette piston made of plastic material that is also electrically conductive. The pipette is automatically received or discarded in a pickup device which has an electric transmission filament.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: November 6, 1990
    Assignee: Hamilton Bonaduz
    Inventors: Renato Arpagaus, Herwig Leyssens, Bruno Hardmeier