olemus
konkreetses õigusruumis patendikõlblikuks loetav leiutise objekt
= subject matter of an invention that is considered appropriate for patent protection in a given jurisdiction

ülevaateid
https://en.wikipedia.org/wiki/Patentability

https://en.wikipedia.org/wiki/Patentable_subject_matter

https://www.jdsupra.com/legalnews/what-is-patentable-subject-matter-61419/