1 . CONVENTION ON JURISDICTION AND THE ENFORCEMENT OF JUDGMENTS - OBJECT - PRIMACY OVER DOMESTIC LAW 2 . CONVENTION ON JURISDICTION AND THE ENFORCEMENT OF JUDGMENTS - REVIEW OF JURISDICTION AND OF ADMISSIBILITY - EXCLUSIVE JURISDICTION OF THE COURTS OF A CONTRACTING STATE - OBLIGATION ON A COURT IN ANOTHER CONTRACTING STATE TO DECLARE OF ITS OWN MOTION THAT IT HAS NO JURISDICTION - SCOPE ( CONVENTION OF 27 SEPTEMBER 1968 , ARTS 16 AND 19 ) 3 . CONVENTION ON JURISDICTION AND THE ENFORCEMENT OF JUDGMENTS - EXCLUSIVE JURISDICTION - PROCEEDINGS ' ' CONCERNED WITH THE REGISTRATION OR VALIDITY OF PATENTS ' ' - MEANING - INDEPENDENT INTERPRETATION ( CONVENTION OF 27 SEPTEMBER 1968 , ART . 16 ( 4 )) 4 . CONVENTION ON JURISDICTION AND THE ENFORCEMENT OF JUDGMENTS - EXCLUSIVE JURISDICTION - PROCEEDINGS ' ' CONCERNED WITH THE REGISTRATION OR VALIDITY OF PATENTS ' ' - MEANING - LIMITS ( CONVENTION OF 27 SEPTEMBER 1968 , ART . 16 ( 4 ))