CELLTECH R & D LIMITED V. MEDIMMUNE INC (2004)

Court of Appeal
[2004] CWCA Civ.1331
Potter LJ, Buxton LJ, Jacob LJ
October 2004

A contractual clause conferring jurisdiction on the English courts to determine any issues relating to the performance of an agreement between the licensor and licensee of a patent was evidence that the parties had intended to ensure that a forum for a hearing of a dispute had specialist courts, experienced at determining all issues of patent infringement. Accordingly, the English courts could determine the question of whether the manufacture and sale of a product infringed the placement of the licensor, even where proceedings have been issued in the US to determine the validity of the patent itself.

Celltech had granted a licence to Medimmune under which Medimmune would pay royalties for products sold or manufactured that would, apart from the grant of the licence, infringe patents owned by Celltech. Medimmune began to manufacture and sell a product in the US which Celltech claimed infringed their US patent. Accordingly, Celltech claimed that royalties were payable. Medimmune sought declarations from the US courts that the US patent was invalid. Celltech commenced proceedings against Medimmune in England under the terms of a jurisdiction clause in the agreement between the parties which conferred jurisdiction relating to questions of liability under the agreement on the English courts. Medimmune applied for a stay of the English proceedings pending the outcome of the US proceedings. Their application was rejected at the first instance and they appealed.

The appeal was dismissed by the court. The court addressed two questions which were identified by the Judge at first instance. First, whether the agreement conferred jurisdiction on the English courts to decide whether the products sold and manufactured by Medimmune were covered by Celltech's US patent; secondly, whether the court should, in its discretion, decline jurisdiction nonetheless.

The scope of the jurisdiction clause

The provisions of the agreement stated that "the validity, construction and performance of this agreement shall be governed by English law". It further stated that "all disputes, claims or proceedings between the parties relating to the validity, construction or performance of this agreement shall be subject to the jurisdiction of the laws of England to the jurisdiction of whose Court the parties hereto submit". Medimmune contended that the word "performance" had a restricted meaning, covering issues such as the administration of royalties but not the underlying question of the scope of the licenced patents. They contended that the parties could not have intended to allow for adjudication of a dispute about the scope of a patent to take place in the UK, while the adjudication on validity took place in the country of the patent concerned. The court rejected this argument stating that as a matter of plain language "performance" would include the basic obligation to pay royalties under the agreement. The court would, in applying English law, apply the appropriate foreign law as to scope. Indeed, the parties had selected the courts of England because they had wished to ensure that the jurisdiction had specialist, experienced Courts to decide matters.

Discretion of the court


It was accepted by the parties that there must be strong reasons for granting a stay where there is a clause giving jurisdiction to a particular court. The argument of Medimmune was that the US court was determining the validity of the US patent and, in doing so, would construe the claims. Accordingly, the US courts were the natural forum to decide on a proper scope and validity of the patent. Furthermore, there was a risk that the US and English courts would reach inconsistent decisions. The court held that all relevant matters had been taken into account by the judge at first instance in exercising his discretion, and accordingly his decision could not be challenged. The court went further by adding that if it were to exercise the discretion afresh, it would reach the same decision as the Judge at first instance.