Pfizer Korea to extend Viagra patent

Published: 2011-09-15 07:00:00

Updated: 2011-09-15 07:00:00

The Korean unit of Pfizer Inc. is seeking to extend Viagra patent, which covers the indication for which the drug is used. That patent expires in October 2019. The US composition-of-matter patent is set to expire in March 2012.

Last August, Pfizer Inc. said it won a patent infringement case against the US unit of Teva Pharmaceutical Industries Ltd, preventing Teva from launching a generic ve...

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