Litigation strategy in view of the Unified Patent Court regime

This is an Insight article, written by a selected partner as part of IAM's co-published content. Read more on Insight

The start of the Unified Patent Court (UPC) will change the landscape for litigating patents in most EU member states. The UPC will provide both plaintiffs and alleged infringers an additional venue for asserting their patents or proactively defending against such assertions. It will have jurisdiction over the new European patents with unitary effect (ie, ‘unitary patents’) and traditional European patents. With respect to the latter, during a transitional period of at least seven years, the established national courts will continue to have jurisdiction to hear patent infringement and nullity actions. This chapter explores certain factors to consider in view of this (potential) upcoming change in the EU litigation landscape.

Current status of UPC

In 2016 it was envisaged that the preparatory phase of the UPC for recruiting judges and setting up its administration could start at the end of May 2017 and that the UPC itself could start operations in the course of 2017. However, the Brexit vote in June 2016 stopped the UPC in its tracks just before it crossed the finish line. Although in November 2016 the UK government announced that it would move ahead with ratification of the UPC Agreement, the start of the UPC was then further delayed because of the June 2017 general election in the United Kingdom.

The start of the UPC has also been delayed by a complaint pending before the German Constitutional Court against the ratification bill. The Constitutional Court has accordingly asked the German president not to sign the ratification bill – which has already passed Parliament – until it has decided on the complaint. Since the grounds for the constitutional complaint are currently unknown, it is unclear how long ratification of the UPC Agreement will be delayed in Germany. It is assumed that the earliest starting date of the UPC would now be mid-2018, but only if the constitutional complaint is swiftly dismissed in Autumn 2017.

Where to litigate once the UPC is operating?

The UPC will have exclusive jurisdiction over unitary patents and will also have jurisdiction over European patents, a fact that is often overlooked and which shows how important it is for patentees to consider the potential implications of the UPC. However, the existing national courts will continue to have jurisdiction over European patents during a transitional period of at least seven years after the start of the UPC. This transitional period can be extended for a further seven to 14 years if UPC member states so decide. To avoid the jurisdiction of the UPC for its European patents, a patentee can opt out of the UPC regime for these patents by filing a declaration to this effect with the UPC registry. Such an opt-out can also be declared for European patents that are granted during the abovementioned transitional phase following the start of the UPC.

This chapter concentrates on the assertion of European patents, since they will already exist when the UPC starts operations – contrary to unitary patents, which will begin to be granted only after the start of the UPC – and since European patents will offer plaintiffs more flexibility for assertion, as they can be litigated in both the national courts and the UPC (at least during the transitional period). This chapter also explores certain factors to consider when deciding which court system – the UPC or a national court – is best suited for asserting a patent or defending against such an assertion (as the case may be). With respect to asserting patents, these include both ‘soft’ and ‘hard’ factors, and their importance to the decision-making process will depend largely on the patentee’s willingness to take risks and try new measures.

One factor to take into account is that litigating in the UPC – at least in the beginning – will include a number of uncertainties arising from the fact that the UPC will be a completely new court system with a new set of rules, new judges with differing national (and therefore legal) backgrounds and no case law guiding the application of these new rules. Many basic questions which are already settled under existing national laws (but not always in the same manner) will have to be considered and decided anew by the UPC – for instance, those relating to the standards of claim construction and establishing the liabilities and responsibilities of defendants. These operational uncertainties may deter more risk-averse patentees from litigating in the UPC in the beginning, since they will have the option to litigate their European patents in the established national courts. However, the fact that the UPC will have to establish its own case law may open new opportunities to successfully raise arguments that could not be raised successfully in certain national courts.

UPC judgments will also have a larger territorial scope than those issued by the national courts. However, in the beginning the UPC will not necessarily cover the territory of all countries that signed the UPC Agreement, but rather only those countries that also ratified the UPC Agreement. It may well be that when the UPC starts operations, it will cover only 14 (instead of 25) member states. But even in this case, to obtain a comparable territorial scope to enforce an injunction, a patentee would (as currently) have to litigate its patent in 14 national courts in parallel – undoubtedly an expensive and resource-consuming exercise. Whether a patentee actually needs a judgment with such a large territorial scope will depend on the market conditions under which the patentee operates and the goal that it wants to achieve through the litigation. Experience shows that in most instances it is sufficient to enforce a patent in only one or two major markets of the European Union. Litigation campaigns that included more countries are usually only found in the pharmaceutical sector and in some instances in the mobile phone industry.

Patentees should also be aware that starting an infringement action in the UPC will in most cases result in a counter nullity action, which can lead to a centralised revocation of its European patent in all participating UPC member states. By opting out a European patent and litigating it in one or more national courts, a patentee can avoid such a centralised nullity attack against the asserted patent.

However, from the perspective of an alleged infringer, the UPC has certain advantages if it wants to proactively defend itself against an alleged infringement of a European patent that is validated in a number of countries in which the UPC has jurisdiction. In such case an alleged infringer could file one nullity action against the European patent to have it centrally revoked. This could be very attractive when compared to filing separate nullity actions in all UPC member states where the European patent in question is validated. That said, such a strategy is possible only if the patentee has not opted out its European patent from the UPC regime.

For a patentee seeking an injunction, it is also important to note that it remains unclear whether an injunction will automatically be granted by the UPC if it finds an infringement. The wording of the UPC Agreement and the corresponding rules of procedure allow the UPC a certain amount of discretion to grant an injunction if infringement is found. In contrast, in certain national courts (eg, the German courts) an injunction is generally granted automatically once infringement is found.

Finally, a plaintiff will have to weigh the cost risks of proceedings in the UPC versus proceedings in one or more national courts. In the UPC, for a patent infringement and counter nullity action each having a value of €1 million, the costs that must be reimbursed to the defendant if the patentee loses the case at first instance may reach up to €230,000. In comparable German proceedings (infringement and separate nullity actions), the corresponding cost risk with the same value in dispute would be €95,358. A patentee therefore must weigh the higher cost risk of UPC proceedings when compared to national proceedings against the potential advantage of obtaining a judgment with a broader territorial scope.

Parallel proceedings in both systems

It will not be possible to assert one patent against the same defendant for the same infringing act in the UPC and in parallel in a national court of a UPC member state. However, it will be possible to use (for example) different patents from one portfolio against the same defendant for the same infringing act in the UPC and in a national court. This potentially allows a patentee to benefit from the advantages of both systems and to reduce the uncertainties relating to UPC proceedings during its initial phase.

UPC proceedings

The procedural rules of the UPC – or at least the current draft, which is likely to be adopted once the preparatory phase has started – include elements from common and continental law systems, which will make UPC proceedings unique and new for all users. The proceedings will be ‘front loaded’, meaning that in the complaint and in the following briefs the parties must present their case in detail and include (for example) the evidence on which they will rely. There will be no discovery as known in US proceedings. The parties will therefore have to submit their arguments prior to the oral hearing in written briefs and the oral hearing will in general last only one day for hearing the arguments of the parties. The rules of procedure for the UPC establish a rather ambitious regime of deadlines that – if adhered to – will result in first-instance proceedings that will take around 12 to 15 months until a decision on infringement and validity is rendered, calculated from the date of service of the complaint on the defendant.

A key difference between the UPC system and the German system for litigating patents is that in the UPC a defendant can raise the nullity of the asserted patent as a defence against an asserted infringement by filing a nullity counter action, which will most likely be decided jointly with the infringement action. In contrast, in Germany the infringement and revocation actions are handled separately by the district court and the Federal Patent Court or European Patent Office, respectively. The separation of the infringement and revocation actions under the German system usually results in a situation where the district courts will render a decision on the infringement of a patent well ahead of the decision in the nullity proceedings. In view of the potential risk of revocation actions and revocation of the asserted patent, the German approach of separate proceedings for infringement and nullity is patentee friendly, as an early decision in infringement proceedings can provide the patentee with effective leverage to obtain its goals.


During the transitional phase, the UPC will offer an additional venue for patentees to enforce their European patents. However, until the UPC gains experience, some uncertainties will persist on account of it being a new and untested court system. Nevertheless, the UPC will offer patentees certain advantages. Striking the right balance in using the UPC and the established national court will be crucial for successful protection and enforcement of patent assets.

Wildanger Kehrwald Graf von Schwerin & Partner mbB Attorneys at law

Couvenstrasse 8

Dusseldorf 40211


Tel +49 211 497 67 83

Fax +49 211 493 02 65


Jasper Meyer zu Riemsloh


[email protected]

Jasper Meyer zu Riemsloh, LLM (Sydney) is a partner of Wildanger and has been a patent litigator for 10 years. He specialises in patent law and represents clients in infringement and nullity actions in the German courts and in opposition proceedings at the European Patent Office (EPO). He has participated in various cross-border patent infringement proceedings and is involved in numerous enforcement proceedings for standard-essential patents (SEPs) in the telecommunications sector, representing both plaintiffs and defendants. In the course of these proceedings he has helped to shape the evolving German case law on fair, reasonable and non-discriminatory licensing and the assertion of SEPs following the European Court of Justice (ECJ) decision in Huawei v ZTE.

Peter-Michael Weisse


[email protected]

Peter-Michael Weisse, LLM (Tulane) is a partner of Wildanger and an experienced patent litigator. Since 1996, he has handled a remarkable number of patent infringement proceedings. In past years he has led successful campaigns for plaintiffs asserting SEPs. He handled prominent cases which led to some of the first German judgments following Huawei v ZTE. He is recommended in Chambers Europe 2017, Who’s Who Legal 2017, the Legal 500 2017, the IAM Patent 1000 2017 and JUVE German Commercial Law Firms Handbook 2017.

Eva Geschke


[email protected]

Eva Geschke is a partner of Wildanger and has been a patent litigator for nearly 20 years. She advises clients in technical fields ranging from pharmaceuticals, chemistry and electro-technology to mechanics and represents them in infringement actions before the German civil courts and in revocation actions before the EPO or the Federal Patent Court. In past years she has acted in many cases regarding SEPs which led to some of the first German judgments implementing the ECJ decision in Huawei v ZTE in Germany. She regularly gives lectures covering different aspects of patent law. She is recommended in Who’s Who Legal 2017, Legal 500 2017, IAM Patent 1000 2017 and JUVE 2017, among others.

Unlock unlimited access to all IAM content