Patents by Inventor Eric J. Patzer

Eric J. Patzer 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 purifying recombinant proteins from corresponding host cell proteins
    Patent number: 5411864
    Abstract: A method for purifying a recombinant protein, e.g. human tissue plasminogen activator (t-PA) from a corresponding endogenous protein of the host cell, e.g. Chinese hamster t-PA, is disclosed. The method comprises contacting a fluid containing the recombinant protein with antibodies specifically binding the corresponding endogenous protein. Monoclonal antibodies directed against and an assay for Chinese hamster t-PA are also disclosed.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: May 2, 1995
    Assignee: Genentech, Inc.
    Inventors: Vincent R. Anicetti, Stuart E. Builder, Billie J. Marks, John R. Ogez, Eric J. Patzer, David A. Vetterlein