"3. …. the Defendant has asserted that the Claimants have infringed and threaten to infringe the 935 Patent by manufacturing, offering to dispose of and disposing of the HT-2 horizontal christmas tree (which is manufactured, offered for disposal and disposed of in the United Kingdom by the First Claimant). The Claimants rely upon the issue of proceedings against them in the Court of Session, Edinburgh on7 December 2006 ."
"5. The Defendant is the proprietor of European patent application no. 06075501.4 (published as EP 1 707 737 A) ('the 737 Application'). The 737 Application is a divisional application of application no. 01920763.8, published as EP 1 278 935 A 9 'the 935 Application') upon which the 935 Patent was granted. At present, the 737 Application claims the same or substantially the same invention as the 935 Patent. The 721 Patent was also granted on a divisional application from the 935 Application. 6. It would be an abuse of process for the Defendant to bring proceedings against the Claimants in respect of the HT-2 horizontal christmas tree under any patent granted on the 737 Application or any other patent granted on a divisional application derived (directly or indirectly) from the 935 Application, either at all or in respect of the same or substantially the same invention as those claimed in the 721 Patent and/or the 935 Patent. The Defendant has known about the HT-2 horizontal christmas tree since 2005 according to paragraph 4 of its Condescendence in the said Scottish proceedings. It has had every opportunity to secure the grant of such patents as it believes it is entitled to with a view to commencing proceedings in respect of the HT-2 horizontal christmas tree. The Claimants should be entitled, upon disposal of these proceedings and those under claim no. HC 06 C04490 relating to the 935 Patent, to freedom from suit in relation to the HT-2 horizontal christmas tree based on divisional applications stemming from the 935 Application. It would be an abuse of process to subject the Claimants to repeated litigation based on a series of patents stemming from the same application."
"7. In that situation the relevant principles are those set out in Spiliada Maritime Corporation and Cansulex[1987] AC 460 . They are helpfully summarised by Tugendhat J in the Lennon case in paragraph 19 as follows: 'In a case where the defendant has been served within the jurisdiction, the approach to be adopted by the court is essentially as follows: i) The basic principle is that a stay will only be granted on the grounds of forum non conveniens where the court is satisfied that there is some other available forum, having competent jurisdiction, which is the appropriate forum for the trial of the action, i.e. in which the case may be tried more suitably for the interests of all the parties and the ends of justice. ii) Initially, the burden rests upon the Defendant, "... not just to show that England is not the natural or appropriate forum for the trial, but to establish that there is another available forum which is clearly or distinctly more appropriate than the English forum: iv) If the court's conclusion at this stage is that there is "... some other available forum which is prima facie clearly more appropriate for the trial of the action, it will ordinarily grant a stay, unless the plaintiff can discharge the burden of showing that there are nonetheless circumstances by reason of which justice requires that a stay should not be granted. In this inquiry, the court will consider all the circumstances of the case, including circumstances which go beyond those taken into account when considering connecting factors with other jurisdiction. v) Lord Goff explicitly stated that "it was necessary to strike a note of caution regarding the prominence given to a legitimate personal or juridical advantage" of the plaintiff, "indicating that such an advantage was not decisive and was just one factor to be considered in assessing 'the interests of all the parties and the ends of justice.'"