Patents by Inventor Joyce Lawrence

Joyce Lawrence 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).

  • Viral-safe purified human thrombin
    Patent number: 5354682
    Abstract: A purified therapeutic grade thrombin is described which is essentially free of lipid envelope viruses, has a specific activity of about 2200 NIH units per milligram of protein to about 3200 NIH units per milligram of protein, is essentially homogeneous and may be produced on a commercial-scale. The thrombin is acceptable from human administration.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: October 11, 1994
    Assignee: Baxter International Inc.
    Inventors: Henry S. Kingdon, Michael J. Griffith, Joyce Lawrence, Roger L. Lundblad