On February 13, 2015 the Eastern High Court of Denmark issued a decision in an appeal in interlocutory proceedings regarding an application for an interim injunction against the marketing and sale of generic medicines (birth-control pills) containing, inter alia, drospirenone.

Bayer is the proprietor of two patents regarding a method for producing drospirenone. On June 25, 2013 Bayer (immediately before the administration of justice reform on the jurisdiction of the Maritime and Commercial Court in proceedings regarding interim injunctions concerning intellectual property entered into force) filed an application for an interim injunction against Sandoz’ marketing and sale of generic pharmaceuticals containing, inter alia, drospirenone. The City Court did not grant the injunction, and Bayer appealed that decision to the High Court.

The case concerned the question of whether or not the applied method to produce the disputed pharmaceuticals, did in fact constitute an infringement of Bayer’s exclusive rights pursuant to the patents-in-suit. This also included whether or not the use of specified catalysts constituted “essential” elements of the inventions, and whether the conditions to declare an infringement under the doctrine of equivalents by use of other catalysts constituted technically similar alternatives that were obvious to the skilled person.

Both of the City Court and the Danish High Court concluded that Bayer had failed to lift its burden of proof that Sandoz’ actions constituted an infringement of any of the two patents-in-suit.


To make sure you do not miss out on regular updates from the Kluwer Patent Blog, please subscribe here.

Kluwer IP Law