“101 It is normal for an injunction to be granted in a case involving infringement of intellectual property rights, once it has been established that there has been infringement and the infringement has not completely ceased at the time of trial. Part of the reason that an injunction will normally be granted in such a case is that, at trial, there often remains a dispute as to whether the defendant is or is not entitled to undertake the acts of which complaint is made. The defendant is usually maintaining that it does have the right to do so and may expressly or implicitly be threatening to do so. 102 The approach in copyright cases was set out by the Master of the Rolls, Lord Woolf, giving the judgment of the Court of Appeal in Phonographic Performance Ltd v Saibal Maitra [1998] F.S.R 749 at 771: “… when a person establishes infringement of copyright and a threat to continue infringement, an injunction will in the ordinary case be granted without restriction. … But the court, when granting an injunction, is still required to exercise a discretion and in so doing there could be circumstances where restriction or refusal of an injunction would be warranted.” 103 A similar approach was taken by the Court of Appeal in the patent case Coflexip SA v Stolt Comex Seaway MS Ltd [2001] R.P.C. 9, where Aldous L.J. said at [6] and [7]: “… whenever a court at the end of a trial grants permanent injunctive relief, the purpose should be to give effect to its judgment on liability … The injunction granted should protect the plaintiff from a continuation of the infringements of his rights by the threatened activities of the defendant. But the injunction must also be fair to the defendant.” “…. Normally, when a defendant has infringed, the court will assume it is not a one-off activity and will grant an injunction to stop repetition. This course is not inevitable. In a few cases courts have concluded that even though infringement has occurred, no future threat exists. In such cases, injunctive relief has been refused …” 104 The same principles must surely apply where a person establishes that there has been a breach of contract which prohibits an act akin to infringement of an intellectual property right.” “… when a person establishes infringement of copyright and a threat to continue infringement, an injunction will in the ordinary case be granted without restriction. … But the court, when granting an injunction, is still required to exercise a discretion and in so doing there could be circumstances where restriction or refusal of an injunction would be warranted.” “… whenever a court at the end of a trial grants permanent injunctive relief, the purpose should be to give effect to its judgment on liability … The injunction granted should protect the plaintiff from a continuation of the infringements of his rights by the threatened activities of the defendant. But the injunction must also be fair to the defendant.” “…. Normally, when a defendant has infringed, the court will assume it is not a one-off activity and will grant an injunction to stop repetition. This course is not inevitable. In a few cases courts have concluded that even though infringement has occurred, no future threat exists. In such cases, injunctive relief has been refused …”
"It does not follow that because a man has done a wrongful act an injunction will be granted against him, though he is liable to damages for the wrong. The Court of Chancery said, 'Where a man threatens and intends to do a wrongful act, we will, before it is done, grant an injunction to prevent his doing it, and we will grant it where the act has been done and is likely to be repeated' - the jurisdiction is simply preventive."
"The basis of an injunction is the threat, actual or implied, on the part of the defendant that he is about to do an act which is in violation of the claimant's right; so that not only must it be clear that the claimant has rights, but also that the defendant has done something which induces the court to believe that he is about to infringe those rights."
"[It] will not happen as a matter of course as an injunction is a discretionary remedy. It is for that reason that there have been cases where injunctions have been refused, for example, where the defendant satisfied the court that further infringement was not likely."
"The claim is for all the profits of Blake's book which the publisher has not yet paid him. This raises the question whether an account of profits can ever be given as a remedy for breach of contract. The researches of counsel have been unable to discover any case where the court has made such an order on a claim for breach of contract."
"There is a light sprinkling of cases where courts have made orders having the same effect as an order for an account of profits, but the courts seem always to have attached a different label."
"My conclusion is that there seems to be no reason, in principle, why the court must in all circumstances rule out an account of profits as a remedy for breach of contract. I prefer to avoid the unhappy expression 'restitutionary damages'. Remedies are the law's response to a wrong (or, more precisely, to a cause of action). When, exceptionally, a just response to a breach of contract so requires, the court should be able to grant the discretionary remedy of requiring a defendant to account to the plaintiff for the benefits he has received from his breach of contract."
"... in certain circumstances an account of profits is ordered in preference to an award of damages. Sometimes the injured party is given the choice: either compensatory damages or an account of the wrongdoer's profits. Breach of confidence is an instance of this. If confidential information is wrongfully divulged in breach of a non-disclosure agreement, it would be nothing short of sophistry to say that an account of profits may be ordered in respect of the equitable wrong but not in respect of the breach of contract which governs the relationship between the parties. With the established authorities going thus far, I consider it would be only a modest step for the law to recognise openly that, exceptionally, an account of profits may be the most appropriate remedy for breach of contract."