Patent No. EP2231639 (titled "Crystalline Forms Of N-(Tert-Butoxycarbonyl)-3-Methyl-L-Valyl-(4R)-4-((7-Chloro-4-Methoxy-1-Isoquinolinyl)Oxy)-N-((1R,2S)-1-((Cyclopropylsulfonyl)Carbamoyl)-2-Vinylcyclopropyl)-L-Prolinamide") was filed by Bristol Myers Squibb on Dec 12, 2008. The application was issued on Apr 1, 2015.

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