The Doctrine of Essential Facilities had it origins in the early years of twentieth century.
“If facilities cannot practically be duplicated by would-be competitors, those in possession of them must allow them to be used on fair terms. It is anticompetitive to foreclose the scare facility. To be ‘essential’, a facility need not be indispensable; it is sufficient if duplication of the facility would be economically infeasible and if denial of its use inflicts a severe handicap on potential market entrants.” (Hecht v. Pro-Football Inc. (1970))
“A monopolist’s control of an essential facility can extend monopoly power from one stage of production to another, and from one market into another. Thus the antitrust laws have imposed on firms controlling an essential facility the obligation to make the facility available on non-discriminatory terms.” (MCI Communications Corporation v. AT&T (1983))
The Doctrine of Essential Facilities imposes on the owner of a facility that cannot reasonably be duplicated and that is essential to competition in a given market a duty to make that facility available to its competitors on a non-discriminatory basis.
In European Union, a dominant licensor may be obliged to grant a license under exceptional circumstances in order to preserve or create competition. Such exceptional circumstances exist in the case where the potential licensee wishes to exploit the license to produce a product for which there is an unmet consumer need. (EU Treaty Article 102)