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China’s SIPO Voids Patent for Gilead’s Viread

publication date: Jul 30, 2013
China's State Intellectual Property Office (SIPO) has invalidated the patent for Viread, a treatment for hepatitis B and HIV/AIDS developed by Gilead Sciences. SIPO agreed with Aurisco, a China API maker, that Viread was not a novel drug because its active ingredient was discovered in the Czech Republic in 1985. Gilead had already lost patent protection for the drug in India and Brazil. Earlier this year, Gilead made an undisclosed settlement with Teva Pharma to end its challenge to Viread's US patent. More details....

Stock Symbols: (NSDQ: GILD) (NYSE: TEVA)

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