Patents by Inventor Karl Erik Sundstrom

Karl Erik Sundstrom 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).

  • Patent number: 4101283
    Abstract: A pipetter diluter for sampling and delivery of a volumetric material. The pipetter diluter has a sampling and delivery tip connected to a cylindrical container. A threaded plunger is rotated by its threads for movement in and out of the inside surface of the cylindrical container. The in and out movement of the plunger facilitates sampling and delivery of the volumetric material.
    Type: Grant
    Filed: July 13, 1976
    Date of Patent: July 18, 1978
    Inventor: Karl Erik Sundstrom