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US Court of Appeals Affirms Decision Finding Seroquel XR Formulation Patent Valid and Infringed

Friday, 15 February 2013

AstraZeneca today announced that, on 14 February 2013, the United States Court of Appeals for the Federal Circuit summarily upheld a lower court ruling that had found the formulation patent protecting SEROQUEL XR (quetiapine fumarate) extended release tablets in the US to be valid and infringed.

AstraZeneca is pleased with the appellate court’s decision, which again demonstrates the strength of the intellectual property protecting SEROQUEL XR.

About the Seroquel XR formulation patent trial
In March 2012, the US District Court for the District of New Jersey found the formulation patent protecting SEROQUEL XR extended release tablets to be valid. The court also ruled that Anchen Pharmaceuticals, Inc., Osmotica Pharmaceutical Corporation, Torrent Pharmaceuticals Limited, Torrent Pharma Inc., Mylan Pharmaceuticals Inc. and Mylan Inc. have infringed the SEROQUEL XR formulation patent.

About AstraZeneca
AstraZeneca is a global, innovation-driven biopharmaceutical business with a primary focus on the discovery, development and commercialisation of prescription medicines for gastrointestinal, cardiovascular, neuroscience, respiratory and inflammation, oncology and infectious disease. AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide. For more information please visit:

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Posted: February 2013