Patents by Inventor Karl-Heinrich Ehinger

Karl-Heinrich Ehinger 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).

  • Pipetting aid
    Patent number: 5510083
    Abstract: The invention relates to a pipetting aid for exerting suction on liquids. The usual previous "Peleusball" has disadvantages when handling and with regard to washing out. The object of the invention is to create a pipetting aid through constructive change, which is functionally safe and easy to handle and which at the same time allows uncomplicated cleaning of the inside.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: April 23, 1996
    Assignee: Deutsch & Neumann GmbH
    Inventors: Helmut Sack, Michael Breskamp, Karl-Heinrich Ehinger