Injunctions: An Increasingly Flexible And Pragmatic Approach
In recent years, the UK courts have demonstrated that they are prepared to be flexible and pragmatic when considering remedies for patent infringement. Whilst the default remains that a successful patentee will usually be entitled to a permanent injunction preventing further sales of an infringing product following a finding of infringement, this will not always be the case, as has been demonstrated by two recent decisions.
Edwards Life Sciences v Boston Scientific: Stay of injunction to allow re-training by clinicians
Having found one of Boston's patents valid and infringed by Edwards Sapien 3 product, the Court had to consider what was appropriate in terms of injunctive relief. The parties accepted that the injunction should be stayed for a period (and then qualified for a further period), having regard to the impact an injunction would have on the health of patients with aortic stenosis. It was also accepted that a number of clinicians who were currently trained to use the Sapien 3 would need retraining to use another device, but the parties did not agree over how many clinicians this would apply to, and as to how long they would need. Boston therefore argued for a stay of two-three months, whereas Edwards sought a stay of 18 months.
The Judge decided that there was considerable uncertainty as to how long the re-training process would take but that it was likely to be at least a year; he therefore allowed continued implantation of the Sapien 3 for a 12 month period (also granting Edwards permission to apply to extend the stay if this is necessary). In addition, for a small but growing number of patients, the Sapien 3 is the only suitable device and so the Court provided an exception for such patients, giving Boston permission to apply to terminate the exception if non-infringing and suitable devices become available.
Regeneron v Kymab: Stay of injunction pending appeal
In March 2018, the Court of Appeal found that various strains of Kymab's transgenic mice would infringe Regeneron's patents. Again, the Court was then required to consider the appropriate form of injunction against Kymab. It was accepted that the injunction should not prevent Kymab from doing any acts for the purpose of a medicinal product assessment (i.e., for...
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