Broad functional claims: A fair reward for patentee or an unfair attempt to “reach through” to future inventions by others?
Different views from the EPO and Germany on the same case 1. Introduction Functional features in patent claims may provide protection not only for specific embodiments disclosed in the patent specification, but also for undisclosed (future) embodiments. A classic example is a claim of the format “An inhibitor of protein P for the treatment of…