iVIS Technologies S.r.l. (iVIS), based in Italy, is one of the world's leading manufacturers of medical devices for treating refractive disorders and various corneal eye diseases.

For one of its inventions, iVIS was granted the European patent EP 1 649 843 which relates to a smart control of the surface power density of surgical laser systems which becomes more and more important in increasingly fast laser systems. This control not only prevents overheating and associated unintended damage to the cornea tissue but also unpredictable interference between consecutive laser pulses. Thus, the duration of the surgery is minimized and a particularly even ablation is achieved at the same time, which makes the procedure even more precise.

SCHWIND eye-tech-solutions GmbH (SCHWIND) had challenged the validity of the German part of EP 1 649 843 (60 2005 003 750.0) by way of a nullity complaint filed with the German Federal Patent Court. Due to the Court's decision dated November 19, 2019, said nullity complaint was dismissed in its entirety and the patent was maintained as granted. ...

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