Patents by Inventor John Axel Sjoquist

John Axel Sjoquist 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).

  • Method of binding immunoglobulin employing a polypeptide from microorganisms
    Patent number: 3995018
    Abstract: A method of binding, in the presence of a liquid, at least one immunoglobulin or its free Fc-fragment, the immunoglobulin being in free form or with its Fab-part bound to an antigen to which is optionally in turn bound one or more groups or substances, to a polymer insoluble in said liquid with the assistance of a substance attached to the polymer. The substance used is at least one polypeptide from microorganisms to which polypeptide the Fc-part of the immunoglobulin or its free Fc-fragment can bind itself.
    Type: Grant
    Filed: October 25, 1973
    Date of Patent: November 30, 1976
    Assignee: Pharmacia Aktiebolag
    Inventor: John Axel Sjoquist