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The Unitary Patent System and How It Affects You

by | Dec 12, 2017





In Brief: Unitary Patent

When the Agreement on a Unified Patent Court (Agreement) eventually comes into force, a unitary patent will run alongside national patents and the classical European patent, having a unitary effect across all its signatory European Union (EU) member states.


Currently, 25 out of 28 EU member states are participating in the system, with the exception of Croatia, Poland and Spain. The Agreement, signed by the participating states on 19 February 2013, will enter     into force after it has been ratified by at least 13 states, of which France, Germany, and the UK must be included. As of August 1, 2017, there have been 13 state ratifications, including France. However, Germany and the UK have not yet ratified – and the UK’s participation is now unclear due to Brexit.


It is hoped that the Agreement can enter into force by early 2018, but the result of the UK’s EU referendum on 23 June 2016 may have a bearing on this. If Italy replaces the UK as the third essential state, implementation is likely to require more time to complete preparation of the ratification and re-organising of the Unified Patent Courts.


Classical European Patent & Unitary Patent Compared



The new unitary patent has a similar application process to the classical European patent. Indeed, the European Patent Office’s (EPO) day-to-day search, examination and granting work will remain largely the same.


The implementing rules of the unitary patent will be based on the rules and procedures under the European Patent Convention, including remedies such as further processing and additional fees for late payment. When indication of allowance is received, just like the existing process, both systems would require the translation of claims into the other two of the three official languages of the EPO (French, German or English).




When grant of the patent takes place under the classical European patent system, the patentee has to select the relevant contracting states of interest. Depending on national requirements of specific countries, local representatives may need to be engaged, official fees paid, and/or translations of the claims or the entire specification may have to be prepared. A renewal fee will need to be paid for each patent territory in the ‘bundle’, ensuring that the granted patent remains in force.


By contrast, if the new unitary patent system is chosen, individual validation is no longer required for countries that have adopted the unitary system. Thus, in theory it can be valid for up to 25 countries at once and it dispenses with the need to engage local representatives for countries that are in the unitary system.


Furthermore, translation requirements for the unitary patent will be much more streamlined. The long term goal is for the translation requirement to be dispensed with after the grant of the unitary patent. Only   when there is a dispute, at the request of a court or an alleged infringer, will the proprietor of a unitary patent have to provide a full human translation into the relevant language.


Until this long term goal is achieved, however, the following translation requirements will likely be imple- mented for a transitional period (possibly up to seven years):

  • where the patent is granted in English, the patent owner will have to provide a translation of

the patent into any official language of the European Union;

  • where the patent is granted in French or German, the patent owner will have to provide a translation of the patent into


In addition, one renewal fee would cover all the signatory countries. For countries that are not in the unitary system, such as Croatia, Poland or Spain, the patentee can still validate in these countries individually and pay annual renewal fees as usual.




Currently, a nine month period is available for central post-grant opposition at the EPO. Following this peri- od, central revocation is no longer possible and local proceedings are required to deal with each patent in the bundle separately. Revocation of one of the patents in the bundle by a national court does not affect the remaining patents in the same bundle.


Under the unitary patent system, however, central revocation can be sought at the Unified Patent Court (UPC) even after the nine month period has elapsed, and it can lead to a unitary patent losing its rights across all corresponding states. Owners of a unitary patent can also bring infringement action at the Unified Patent Court rather than at the local court in each country.


When the UPC comes into force, there is a transitional period (possibly around seven years) where existing European patents in bundles can opt out of the UPC to preserve them as individual patents. Thus, patent owners can forum shop during this period. If not opted out, a classical European patent in a bundle can utilise the central renewal fee system in states that are participating states to the unitary patent, and utilise the UPC to bring an infringement action. However, the European patent will also be vulnerable to being attacked centrally at the UPC for the relevant member states.


For non-unitary patent states, the European patent will remain as individual patents and action has to be brought at national courts.


Potential Advantages and Disadvantages of the Unitary Patent


Clearly, it is more convenient to administer and maintain a single unitary patent than multiple national patents under the classical European patent system. As a single set of patent laws applies across all countries party to the unitary patent system, the scope is harmonised across all these countries. A single infringement action can be brought by the patentee at the UPC rather than an individual local action in each of the states where infringement is taking place. Procedures and costs are thus streamlined.


As validation is streamlined under the unitary system, the costs involved are thus lower than validating individually in these countries under the classical European patent system. The intention is for high quality machine translations to be used for unitary patents, avoiding costs for mandatory translation unless litiga- tion arises.


Renewal fees for a unitary patent are paid centrally, based on the cumulative renewal fees for the top four validation countries (currently Germany, France, the UK, and the Netherlands). Therefore, the renewal fee under the unitary patent system can be more cost effective than the classical European patent system if more than four countries are selected. Having said that, the ability to save on renewal fees by letting the patent lapse in countries that are no longer of interest would be lost under the unitary patent system.


Non-payment of the unitary patent renewal fee would cause lapse of right across all unitary patent states.


Another disadvantage of a unitary patent is its vulnerability to central attack at the UPC. If successfully revoked at the UPC, all rights are lost across all corresponding states. It is far more difficult and potentially more costly for a patent granted under the classical European patent system to be revoked in all states covered.


Certainly, having a bundle of separate national patent rights may be safer if litigation is likely. If so, patent owners should utilise the transitional period to opt out of the unitary system when the Agreement finally comes into force.


Also bear in mind that the unitary patent will only cover 25 member states, and the classical European patent system presently covers 38 member states.



  • Costs
  • Effect of Brexit
  • Pros and Cons of the Current European Patent System and the Unitary Patent System
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  • Adrian Hocking

    Adrian is a Director, as well as a qualified Engineer and an experienced British and European Patent Attorney. Adrian relishes the challenge of obtaining potent and robust patent protection in the UK, Europe and worldwide. Having dealt with over 900+ European patent applications, not to mention all his British and US patent experience, Adrian enjoys advising his diverse international client-base in all aspects of intellectual property law. LinkedIn: Adrian Hocking

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