1. General remarks 

The EPC does not define what is meant by "invention", but Art. 52(2) contains a non-exhaustive list of "non-inventions", i.e. subject-matter which is not to be regarded as an invention within the meaning of Art. 52(1). The items on this list are all either abstract (e.g. discoveries or scientific theories) and/or non-technical (e.g. aesthetic creations or presentations of information). In contrast to this, an "invention" within the meaning of Art. 52(1) must have a technical character (see G‑I, 1). It may be in any field of technology.