Patents by Inventor Heinz Dzaack

Heinz Dzaack 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).

  • Handpipette
    Patent number: 4144761
    Abstract: A pipette having an axially displaceable piston is provided with a transversely displaceable stopping device for limiting the displacement of the piston in accordance with a volumetric scale marked on the stopping device. Operation of the piston and stopping device can be done with one hand.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: March 20, 1979
    Assignee: LKB-Produkter AB
    Inventor: Heinz Dzaack