“It is not in dispute that where a plaintiff has at first instance established a right to a perpetual injunction, the court has a discretion to stay the operation of the injunction pending an appeal by the defendant against the judgment. On what principles ought such a discretion to be exercised. The object, where it can be fairly achieve, must surely be so to arrange matters that, when the appeal comes to be heard, the appellate court may be able to do justice between the parties, whatever the outcome of the appeal may be. Where an injunction is an appropriate form of remedy for a successful plaintiff, the plaintiff, if he succeeds at first instance in establishing his right to relief, is entitled to that remedy upon the basis of the trial judge’s findings of fact and his application of the law. This is, however, subject to the defendant’s right of appeal. If the defendant in good faith proposes to appeal, challenging either the trial judge’s findings or his law, and has a genuine chance of success on his appeal, the plaintiff’s entitlement to his remedy cannot be regarded as certain until the appeal has been disposed of. In some cases the putting of an injunction into effect pending appeal may very severely damage the defendant in such a way that he will have no remedy against the plaintiff if he, the defendant, succeeds on his appeal. On the other hand, the postponement of putting an injunction into effect pending appeal may severely damage the plaintiff. In such a case a plaintiff may be able to recover some remedy against the defendant in the appellate court in respect of his damage in the event of the appeal failing, but the amount of this damage may be difficult to assess and the remedy available in the appellate court may not amount to a complete indemnity. It may be possible to do justice by staying the injunction pending the appeal, the plaintiff’s position being suitably safeguarded. On the other hand it may, in some circumstances, be fair to allow the injunction to operate on condition that the plaintiff gives an undertaking in damages or otherwise protects the defendant’s rights, should he succeed on his appeal. In some cases it may be impossible to devise any method of ensuring perfect justice in any event, but the court may nevertheless be able to devise an interlocutory remedy pending the decision of the appeal which will achieve the highest available measure of fairness. The appropriate course must depend upon the particular facts of each case.”
“General obligation .1 Member States shall provide for the measures, procedures and remedies necessary to ensure the enforcement of the intellectual property rights covered by this Directive. Those measures, procedures and remedies shall be fair and equitable and shall not be unnecessarily complicated or costly, or entail unreasonable time-limits or unwarranted delays. 2. Those measures, procedures and remedies shall also be effective, proportionate and dissuasive and shall be applied in such a manner as to avoid the creation of barriers to legitimate trade and to provide for safeguards against their abuse.”
“Accordingly, the grant or refusal of a final injunction is not merely a matter of the balance of convenience. Justice requires that the court observe the principles enunciated in Shelfer'scase and remembers that if the effect of the grant of an injunction is not oppressive the defendant cannot buy his way out of it, even if the price, objectively ascertained, would be modest. My understanding of the word 'oppressive' in this context is that the effect of the grant of the injunction would be grossly disproportionate to the right protected. The word 'grossly' avoids any suggestion that all that has to be done is to strike a balance of convenience.”