Patents by Inventor Richard D. Purcell, Jr.

Richard D. Purcell, Jr. 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).

  • Human uterine tissue plasminogen activator produced by recombinant DNA
    Patent number: 5344773
    Abstract: A replicable expression vector capable, in a transformed host mammallian cell, of expressing a DNA sequence encoding active human TPA which, when expressed in the host cell, yields active TPA which lacks one or more of the TPA-bound N-linked carbohydrate moieties of naturally occurring human TPA.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: September 6, 1994
    Assignee: Genzyme Corporation
    Inventors: Cha-Mer Wei, Nancy Hsiung, Vermuri B. Reddy, Jeffrey F. Lemontt, William Dackowski, Richard Douglas, Edward S. Cole, Richard D. Purcell, Jr., David Tai-Yui Lau