Article: GENENTECH FILES SUIT AGAINST GENZYME OVER TNKASE PATENT.

Genentech Inc. filed suit against Genzyme Corp. in U.S. District Court in Delaware in a patent/contract dispute related to TNKase (tenecteplase).

Sabrina Johnson, Genentech's director of corporate communications, confirmed that the company had filed a lawsuit, and added that Genentech is "looking forward to getting this resolved with Genzyme," but said the company would make no further comment concerning the case.

The case relates to U.S. Patent No. 5,344,733 held by Genzyme and licensed about 10 years ago to Genentech, said Caroline Copithorne, an analyst at Morgan Stanley Dean Witter in San Francisco. "The thing that seems odd is that Genentech ...

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