++++ 1.Competition - Agreements, decisions and concerted practices - Industrial and commercial property rights - Patent - Exercise of rights - Permissible in principle ( EEC Treaty, Art . 85(1 ) ) 2 . Competition - Agreements, decisions and concerted practices - Industrial and commercial property rights - Patent licensing agreement - Obligation to continue to pay a royalty after expiry of the patent - Permissible in principle ( EEC Treaty, Art . 85(1 ) ) 3.Competition - Agreements, decisions and concerted practices - Industrial and commercial property rights - Patent licensing agreement - Prohibition on manufacture and marketing after expiry of the patent and termination of the agreement - Unlawfulness - Condition - Appreciable effect on trade between Member States ( EEC Treaty, Art . 85(1 ) )