Judge Misread Patent Claims, Sanofi Tells Fed. Circ.

Law360, Washington (February 10, 2012, 4:47 PM EST) -- Sanofi-Aventis Deutschland GmbH told the Federal Circuit on Friday that a California federal court mucked up its patent claim language when it let Genentech Inc. off the hook for Sanofi's infringement allegations over patents pertaining to cancer drugs Rituxan and Avastin.

Sanofi and Genentech have wrangled over U.S. Patent Numbers 5,849,522 and 6,218,140, which pertain to a DNA sequence of the human cytomegalovirus known as an enhancer. Sanofi sued Genentech and biotech company Biogen IDEC Inc. in October 2008 in Texas federal court after Genentech said...
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