Case C-471/14: Judgment of the Court (Eighth Chamber) of 6 October 2015 (request for a preliminary ruling from the Oberlandesgericht Wien — Austria) — Seattle Genetics Inc. v Österreichisches Patentamt (Reference for a preliminary ruling — Intellectual and industrial property — Proprietary medicinal products — Regulation (EC) No 469/2009 — Article 13(1) — Supplementary protection certificate — Duration — Concept of the ‘date of the first authorisation to place the product on the market in the European Union’ — Whether account is to be taken of the date of the decision granting authorisation or the date on which notification was given of that decision)