GTC Biotherapeutics (fka GTCB)

[DewDiligence]

Here's the IP language from the 2006 10K:

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We currently hold 25 issued or allowed U.S. patents and 180 corresponding foreign patents. We have received a U.S. patent, with claim coverage for the production of therapeutic proteins in the mammary glands of transgenic mammals. This patent has an expiration date of 2021. Our other patents generally expire between 2013 and 2015.

In accordance with ongoing research and development efforts, we have 56 pending U.S. patent applications and 184 corresponding foreign applications covering relevant and newly developed portions of our transgenic technology. Several of these pending applications are included in various cross-licensing or out-licensing arrangements with other companies that in turn provide us access to their proprietary technologies. We have granted limited access to our technology to Pharming Group, N.V., or Pharming, and to PharmAthene, Inc. Recently issued U.S. patents provide us with claim coverage for protein purification from the milk of transgenic animals, the production of monoclonal and assembled antibodies at commercial levels in the milk of transgenic mammals, the production of recombinant antithrombin in the milk of transgenic goats and the production of prolactin in the milk of transgenic animals.

In addition, we hold exclusive and non-exclusive licenses from Genzyme Corporation, Biogen-Idec, Inc., and other individuals and corporations to rights under a number of issued patents and patent applications in the U.S. and the corresponding cases abroad for a variety of technologies enabling the transgenic production of proteins in the milk of non-human animals. We hold licenses to 34 issued U.S. patents and 30 pending U.S. applications. On an international basis, we hold licenses to 64 issued patents and have 116 pending applications.
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