“In the light of the observations in Virgin and the arguments on this appeal I would recast the Glaxo guidance as follows: “1. The discretion, which is very wide indeed, should be exercised to achieve the balance of justice between the parties having regard to all the relevant circumstances of the particular case. 2. The discretion is of the Patents Court, not of the Court of Appeal. The Court of Appeal would not be justified in interfering with a first instance decision that accords with legal principle and has been reached by taking into account all the relevant, and only the relevant, circumstances. 3. Although neither the EPC nor the 1977 Act contains express provisions relating to automatic or discretionary stay of proceedings in national courts, they provide the context and condition the exercise of the discretion. 4. It should thus be remembered that the possibility of concurrent proceedings contesting the validity of a patent granted by the EPO is inherent in the system established by the EPC. It should also be remembered that national courts exercise exclusive jurisdiction on infringement issues. 5. If there are no other factors, a stay of the national proceedings is the default option. There is no purpose in pursuing two sets of proceedings simply because the Convention allows for it. 6. It is for the party resisting the grant of the stay to show why it should not be granted. Ultimately it is a question of where the balance of justice lies. 7. One important factor affecting the exercise of the discretion is the extent to which refusal of a stay will irrevocably deprive a party of any part of the benefit which the concurrent jurisdiction of the EPO and the national court is intended to confer. Thus, if allowing the national court to proceed might allow the patentee to obtain monetary compensation which is not repayable if the patent is subsequently revoked, this would be a weighty factor in favour of the grant of a stay. It may, however, be possible to mitigate the effect of this factor by the offer of suitable undertakings to repay. 8. The Patents Court judge is entitled to refuse a stay of the national proceedings where the evidence is that some commercial certainty would be achieved at a considerably earlier date in the case of the UK proceedings than in the EPO. It is true that it will not be possible to attain certainty everywhere until the EPO proceedings are finally resolved, but some certainty, sooner rather than later, and somewhere, such as in the UK, rather than nowhere, is, in general, preferable to continuing uncertainty everywhere. 9. It is permissible to take account of the fact that resolution of the national proceedings, whilst not finally resolving everything, may, by deciding some important issues, promote settlement. 10. An important factor affecting the discretion will be the length of time that it will take for the respective proceedings in the national court and in the EPO to reach a conclusion. This is not an independent factor, but needs to be considered in conjunction with the prejudice which any party will suffer from the delay, and lack of certainty, and what the national proceedings can achieve in terms of certainty. 11. The public interest in dispelling the uncertainty surrounding the validity of monopoly rights conferred by the grant of a patent is also a factor to be considered. 12. In weighing the balance it is material to take into account the risk of wasted costs, but this factor will normally be outweighed by commercial factors concerned with early resolution. 13. The hearing of an application for a stay is not to become a minitrial of the various factors affecting its grant or refusal. The parties’ assertions need to be examined critically, but at a relatively high level of generality.”
“it must be borne in mind that national proceedings have the potential to deliver some degree of certainty. A defendant who is held not to infringe the claims of a granted patent by the national court knows that will remain so whatever the EPO decides. Claims cannot be broadened in opposition proceedings. Equally, the decision of the national court that the patent is invalid cannot be undone by the EPO. Moreover a rapid decision of a respected national court may promote early settlement of the dispute as a whole, bringing to an end proceedings everywhere.”
“If it transpired that [Coloplast’s Patent] was later found by the EPO to be invalid, the damage already caused to Salts as a result of any prior, adverse finding by the UK court, would be near irreparable, and in any case very difficult to accurately quantify.”
“There was a tendency in the submissions of Mr Speck for HTC to regard the fact of amendment by the EPO after an English judgment as throwing away the cost and expenditure of the English trial. It does not. There may be some additional expenditure caused by the amendment in the concurrent proceedings but that is a consequence of the system, and is inherent in it.”