Patents by Inventor Ingeborg C. Senstad

Ingeborg C. Senstad 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).

  • Process and a device for improved oxygenation of biological cultures
    Patent number: 5008197
    Abstract: The present invention provides an improved method and apparatus for cultivating mammalian cells. The invention relates to reaction vessels having a mechanical stirrer therein. The improvement comprises supplying oxygen to the culture media in the vessel through at least one oxygen-permeable membrane which is located on the stirrer so that the oxygen permeable membrane provides enhanced oxygen transfer across the membrane which is in contact with the culture media. The method and apparatus provides improved oxygen transfer across the membrane in comparison to other devices in which the oxygen permeable membrane is not located on the stirrer.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: April 16, 1991
    Inventors: Ivar Wergeland, Ingeborg C. Senstad, Eirik Nestaas