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Sepracor gains US patent extension for top product
18 December 2009
Ian Haydock

The US Patent and Trademark Office has extended the term of a key patent for Sepracor's insomnia product Lunesta (eszopiclone) by more than two years, to February 14th, 2014.

The 760-day extension to the composition of matter patent, No 6,444,673, was granted under the 35 USC 156 restoration...



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