On August 17, 2021, the Second Patent Law Simplification and Modernization Act (2nd PatMoG) was proclaimed, resulting in several changes for patent law. In the article “Der patentrechtliche Verhältnismäßigkeitsgrundsatz im Bereich Arzneimittel und Medizinprodukte, Teil 1 – Einführung, die Berücksichtigung von Drittinteressen und kritische Auseinandersetzung mit der SOFOSBUVIR Entscheidung” by Dr Marco Stief in the current issue of PharmR 2/2023, two major innovations in particular are explained. The objection of disproportionality newly inserted in Sec. 139 (1) sentence 3 Patent Act and the compensation claim inserted in Sec. 139 (1) sentence 4 Patent Act. The two provisions are discussed in particular with regard to the enforcement of claims for injunctive relief under patent law in the field of pharmaceuticals and medical devices.