The pharmaceutical giant Pfizer has recently won a court battle against Israeli pharmaceutical manufacturer Teva to maintain its patent on Viagra. The original patent on the popular erectile dysfunction drug was issued in the early 1990s and was due to expire in 2012.
Had Pfizer failed in their legal bid it would have opened the floodgates for legal generic Viagra and made a serious dent in Pfizer’s profits ($1 billion sales of Viagra in the US alone).

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