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Lilly asks Supreme Court to protect Cialis patent

Eli Lilly has petitioned the Supreme Court to reconsider a lower court decision invalidating a patent on Cialis, calling the case "a particularly egregious example of functional claiming." Lilly argues German company Erfindergemeinschaft UroPep "drafted a single-step claim using purely functional language to assert ownership over the use of a huge universe of compounds, including the active ingredient in a commercially successful product already on the market."

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