European Patent Office
PredecessorInstitut International des Brevets
Formation1977; 47 years ago (1977)
HeadquartersMunich, Germany[1]
Official languages
  • English
  • French
  • German
António Campinos
Parent organisation
European Patent Organisation
2.357 billion (2020)[2]
6,403 (Dec. 2020)[3]

The European Patent Office (EPO)[notes 1] is one of the two organs of the European Patent Organisation (EPOrg), the other being the Administrative Council.[4] The EPO acts as executive body for the organisation[5][6] while the Administrative Council acts as its supervisory body[5] as well as, to a limited extent, its legislative body.[6][7] The actual legislative power to revise the European Patent Convention lies with the Contracting States themselves when meeting at a Conference of the Contracting States.[8]

Within the European Patent Office, examiners are notably in charge of studying European patent applications, filed by applicants, in order to decide whether to grant a patent for an invention. The patents granted by the European Patent Office are called European patents.


EPO headquarters in Munich, Germany
Aerial image of the headquarters in Munich (center), above it on the other side of the river Isar the science museum Deutsches Museum, to the left the German Patent and Trademark Office
EPO sub-office in Berlin

The European Patent Office (EPO) grants European patents covering the Contracting States to the European Patent Convention and several other states that have concluded extension and validation agreements with the EPO. The EPO provides a single patent grant procedure, but not a single patent from the point of view of enforcement. Hence a patent granted by the EPO is not a single or unitary European Union patent or uniformly recognised Europe-wide patent, but a bundle of national patents.[6] Patents granted by the EPO can, however, be challenged centrally at the EPO via opposition proceedings. Besides granting European patents, the EPO is also in charge of establishing patentability search reports for national patent applications on behalf of the patent offices of France, Netherlands, Belgium, Luxembourg, Italy, Turkey, Greece, Cyprus, Malta, San Marino, Lithuania, Latvia and Monaco.[9][10][11][12]

Role in the unitary patent

Since the European patent with unitary effect (also called "unitary patent") entered into force on June 1, 2023, some administrative tasks relating thereto are performed by the EPO. Those tasks include the collection of renewal fees and registration of unitary effect upon grant, exclusive licenses and statements that licenses are available to any person. Decisions of the EPO regarding the unitary patent are open to appeal to the Unified Patent Court (UPC), rather than to the EPO Boards of Appeal.[13]

Legal status

The European Patent Office is not a legal entity as such,[14] but an organ of the European Patent Organisation,[15] which has a legal personality.[16]

Location and staff

The EPO headquarters are located in Munich, Germany.[1] The EPO has also a branch in Rijswijk, Netherlands, near The Hague,[17][18] sub-offices in Berlin, Germany,[19] and Vienna, Austria, and an office for liaison with the EU institutions in Brussels, Belgium.[20] At the end of 2019, the European Patent Office had a staff of 6 608 (with 3 675 based in Munich, 2 624 in Rijswijk, 227 in Berlin, 87 in Vienna and 3 in Brussels). The EPO comprised staff from 35 different nationalities, with 74% having a nationality different from that of the country they work in. In terms of gender diversity, 34% of all staff members were women. One quarter of managers were women, a slight increase on previous years. In 2019, the EPO spent over EUR 5 million on talent development activities[clarification needed], with 94% of staff receiving at least one training activity during the year.[21][non-primary source needed]

The premises of the European Patent Office enjoy a form of extraterritoriality. In accordance with the Protocol on Privileges and Immunities,[22] which forms an integral part of the European Patent Convention under Article 164(1) EPC, the premises of the European Patent Organisation, and therefore those of the European Patent Office, are inviolable.[23] The authorities of the States in which the Organisation has its premises are not authorized to enter those premises, except with the consent of the President of the European Patent Office.[24] Such consent is however "assumed in case of fire or other disaster requiring prompt protective action".[24]


Presidents of the European Patent Office
1. Johannes Bob van Benthem (1 November 1977 - 30 April 1985), Dutch.
2. Paul Braendli (1 May 1985 - 31 December 1995), Swiss.
3. Ingo Kober (1 January 1996 - 30 June 2004), German.
4. Alain Pompidou (1 July 2004 - 30 June 2007), French.
5. Alison Brimelow (1 July 2007 - 30 June 2010), British.
6. Benoît Battistelli (1 July 2010 - 30 June 2018), French.[25]
7. António Campinos (from 1 July 2018), Portuguese-French.

The European Patent Office is directed by a president, who is responsible for its activities to the Administrative Council.[26] The president also represents the European Patent Organisation.[27] The president has therefore a dual role: representative of the European Patent Organisation and head of the European Patent Office.[28] The President of the European Patent Office is appointed by the Administrative Council.[29] A majority of three-quarters of the votes of the Contracting States represented and voting in the Administrative Council is required for the appointment of the President.[30][31]

The President is assisted by a collective body known as the Management Advisory Committee (MAC). Currently, the MAC comprises the President, three Vice-Presidents and several Principal Directors and Directors. Each MAC member is responsible for a specific business area and reports to the President. The MAC is expected to implement initiatives in alignment with general policy and propose initiatives or policy changes that could impact the activities of the EPO.[32][non-primary source needed]

More generally, the "management of the EPO is dominated by the delegates of the contracting States in the Administrative Council," these delegates being, according to Otto Bossung, primarily guided by their national interests rather than by supranational interests such as for instance the implementation of the EU internal market.[33]


Signage at the Munich office of the European Patent Office, in its three official languages, German, English and French.

The three official languages of the European Patent Office are English, French and German[34] and publications including the European Patent Bulletin and Official Journal of the European Patent Office are published in all three of those languages.[35]

European patent applications may be filed in any language[36][37] provided that a translation into one of the official languages is submitted within two months if the language of filing is not an EPO official language.[38] The official language in which the application is filed or into which it is translated is taken to be the language of the proceedings[39] and the application is published in that language.[40] Documentary evidence may also be submitted in any language, although the EPO may require a translation.[41]

Some Contracting States to the European Patent Convention have an official language which is not an official language of the EPO, such as Dutch, Italian or Spanish. These languages are referred to as "admissible non-EPO languages".[37] Residents or nationals of such States may submit any documents subject to a time limit in an official language of that State[42] and there is a period of one month for filing a translation into an official language[43] or the document is deemed not to have been filed.[42] The filing fee and examination fee are reduced by 30% for certain categories of applicants, namely for small and medium-sized enterprises, natural persons, and "non-profit organisations, universities or public research organisations", when filing a patent application or an examination request in an admissible non-EPO language and subsequently, or at the earliest simultaneously, file the necessary translation.[37][44]

Departments and directorates-general

Branch of the EPO at The Hague, Netherlands[45] (more precisely at Rijswijk, a suburb of The Hague).

The European Patent Office includes the following departments to carry out the procedures laid down in the EPC:[46]

The above departments of European Patent Office are organized into three "Directorates-General" (DG), each being directed by a Vice-President, the DG Patent Granting Process, the DG Corporate Services, and the DG Legal and International Affairs, and a Boards of Appeal Unit, acting as the EPO’s judiciary.[54] According to Sir Robin Jacob, the members of the EPO Boards of Appeal are "judges in all but name".[55]

The European Patent Office does not make decisions on infringement matters. National courts have jurisdiction over infringement matters regarding European patents. Regarding the validity of European patents however, both the European Patent Office during opposition proceedings (Article 99 EPC) and national courts during nullity proceedings (Article 138 EPC) may decide to revoke a European patent.

Activities under the Patent Cooperation Treaty

In the international procedure according to the Patent Cooperation Treaty (PCT), the European Patent Office acts as a Receiving Office, an International Searching Authority (ISA), an International Preliminary Examining Authority (IPEA) and, with effect from 1 July 2010, as a so-called Supplementary International Searching Authority (SISA).[56] The Patent Cooperation Treaty (PCT) provides an international procedure for handling patent applications, called international applications, during the first 30 months after their first filing in any country party to the PCT. The European Patent Office does not grant "international patents," as such patents do not exist. After 30 months (or, for a few countries, after 20 months)[57] an international application must be converted into national or regional patent applications, and then are subject to national/regional grant procedures.

As Supplementary International Searching Authority (SISA), the European Patent Office has announced that it will conduct no more than 700 supplementary international searches per year.[58]

Online services

The EPO offers on its web site several free services, including Espacenet and Open Patent Services (OPS) for searching within its collection of patent documents, the legal texts published in its Official Journal, the European Patent Register containing legal information relating to published European patent applications and European patents[59] (the European Patent Register also allowing the inspection of files under Article 128 EPC), and a publication server of the European patent applications and patents. There is also the CMS software for filing European patent applications online.[citation needed]

International cooperation

The EPO engages in several forms of international co-operation within and outside of Europe, with other intellectual property offices, as well as with international organisations that are outside of the patent system.[60] The EPO cooperates with the United States Patent and Trademark Office (USPTO) and the Japan Patent Office (JPO) as one of the Trilateral Patent Offices. It also works with the Japan Patent Office (JPO), the Korean Intellectual Property Office (KIPO), China's National Intellectual Property Administration (CNIPA) and the United States Patent and Trademark Office (USPTO) in a co-operation known as the "five IP offices" or IP5.[61]

On 27 April 2017, the EPO and the Eurasian Patent Organization (EAPO) signed a program enabling increased work-sharing and accelerated treatment of patent applications between both patent offices. The agreement, known as the Patent Prosecution Highway (PPH), was signed by the presidents of the EPO and EAPO in Munich. The EAPO president Saule Tlevlessova stated, "The signing of this bilateral PPH agreement opens a new page in the history of EAPO-EPO co-operation, and will serve to benefit applicants and our offices."[62]

Currently, the EPO offers three types of cooperation agreements with non-member states[63][non-primary source needed] :

Employees' representation and labour relations

This section appears to be slanted towards recent events. Please try to keep recent events in historical perspective and add more content related to non-recent events. (September 2015)

The main staff union active within the EPO is the "Staff Union of the European Patent Office" (SUEPO).[64]

As an international organization, EPO enjoys immunity and national courts have—in principle—no jurisdiction regarding disputes in which EPO is a party. Labour disputes can be submitted by employees to the Administrative Tribunal of the International Labour Organization (ILOAT).[65] Courts in the Netherlands have however on occasion taken jurisdiction when it found a breach of fundamental principles of human rights, based on European Court of Human Rights case law. Jurisdiction was assumed for example because the ILOAT procedure (of over 3 years) was too lengthy for a process involving health issues[66] or regarding a conflict with labour unions, as no appeal to ILOAT or any other judicial organization was possible.[67] The background to the latter judgment was the ongoing conflict between EPO staff and management, in particular the refusal of EPO to recognise the staff unions, blocking of e-mail communication between the unions and their members and restriction of the right to strike.[68] After service of the judgement to EPO, the then Dutch Minister of Security and Justice, Ivo Opstelten, ordered bailiffs not to perform service of the judgment.[clarification needed] Opstelten's intervention was criticised by a number of Dutch legal experts including Cedric Ryngaert, Professor of International Law in Utrecht, who considered the Minister's intervention to be unusual: "Basically he erodes the power of the Court. International organisations are going to increasingly put themselves above the law, which is already a problem now. Opstelten relies on an Act from the seventies, which must be applied dynamically. Instead he takes a very conservative view."[68]

Labour relations at the EPO during the presidency of Benoît Battistelli have been strained and marked by conflict with a noticeable escalation during 2014.[69][70][71][72] Staff discontent has been attributed to Battistelli's style of management which, according to reports in the German newspapers Die Zeit and Die Welt, was perceived by staff as being unduly autocratic and unsuited to a European intergovernmental body such as the EPO.[73][74][75]

Concern has been expressed regarding the high number of suicides of EPO employees, five in over three years.[64][76] The EPO President Battistelli dismissed the suggestions -by EPO staff union SUEPO- of a possible link between the suicide and working conditions at the EPO as "totally inappropriate" and accused the staff union of "abusing a personal tragedy and inciting controversy". The EPO staff union SUEPO said that a direct link between the suicide and the working conditions had not been demonstrated but that the Dutch Labour Inspectorate should be given the opportunity of investigating the matter.[77]

Controversial investment fund

In June 2018, the German Federal Court of Auditors (German: Bundesrechnungshof) and financial experts criticized the planned establishment by the EPO of a fund, called "EPO Treasury Investment Fund" (EPOTIF), to manage 2.3 billion euros of its assets, the fund including risky financial products such as asset-backed securities, mortgage-backed securities, and credit default swaps.[78][79][80][81]

Quality of granted patents

At the end of the 2010s and into the 2020s, a decline in the quality of patents granted by the EPO was reported and criticised, as the decline in the quality of searches and examinations at the EPO is seen as harmful to the industry (more invalid European patents granted means more legal uncertainty in the market).[82][83][84][85][86]


  1. ^ The abbreviation "EPOff" has been also used to refer to the European Patent Office, in order to distinguish it from the European Patent Organisation, see European Patent Office web site, European Patent Convention (EPC), Alphabetical keyword index. Consulted on November 17, 2007.


  1. ^ a b Article 6(1) EPC
  2. ^ "Comprehensive Summary 2020 Budget" (PDF). EPO. 2020. Retrieved 18 May 2022.
  3. ^ "Social Report 2020" (PDF). EPO. 2021. Retrieved 18 May 2022.
  4. ^ Article 4(2) EPC
  5. ^ a b Article 4(3) EPC
  6. ^ a b c Gower's Report on Intellectual Property Archived 2008-03-19 at the Wayback Machine, para 1.34
  7. ^ Article 33 EPC
  8. ^ Article 172 EPC
  9. ^ See Article 1 of Decision of the President of the European Patent Office dated 5 October 2010 on the filing of copies of search results under Rule 141(1) EPC - utilisation scheme Archived 23 October 2010 at the Wayback Machine, EPO web site, Notices and decisions of the President, October 20, 2010. Consulted on October 22, 2010.
  10. ^ "Simplified conditions for patenting for Lithuanian inventors". European Patent Office. 9 October 2013. Retrieved 25 April 2014.
  11. ^ "Co-operation with San Marino on national searches". European Patent Office. 22 October 2013. Retrieved 25 April 2014.
  12. ^ "Notice from the European Patent Office dated 8 March 2017 concerning the processing by the EPO as International Searching Authority of informal comments on earlier search results ("PCT Direct")". Official Journal of the European Patent Office. European Patent Office (March 2017). March 31, 2017. Retrieved March 31, 2017.
  13. ^ Article 32(1)i, Agreement on a Unified Patent Court, implementing Article 9.3 of Regulation 1257/2012
  14. ^ Decision T 1012/03 of December 1, 2006, Reasons 29.
  15. ^ Article 4(2)(a) EPC
  16. ^ Article 5(1) EPC
  17. ^ Article 6(2) EPC
  18. ^ Enlarged Board of Appeal decision G 7/88 (Administrative Agreement) of 16.11.1990, Summary of Facts and Submissions, V.(3)
  19. ^ "Protocol on the Centralisation of the European Patent System and on its Introduction (Protocol on Centralisation) of 5 October 1973 as revised by the Act revising the EPC of 29 November 2000". European Patent Office. Section I, (3)(a). Retrieved 15 November 2022.
  20. ^ "Locations". EPO. 2023-01-19. Archived from the original on 2024-01-10. Retrieved 2024-01-10.
  21. ^ European Patent Office, Annual Report 2019. Staff and resources Archived 2010-07-14 at the Wayback Machine, Fig. 2 Analysis of staff in post on 31 December 2009 by place of employment & grade. Consulted on 1 June 2010.
  22. ^ "Protocol on Privileges and Immunities of the European Patent Organisation (Protocol on Privileges and Immunities) of 5 October 1973". European Patent Office. Retrieved 15 November 2022.
  23. ^ Protocol on Privileges and Immunities, Article 1(1).
  24. ^ a b Protocol on Privileges and Immunities, Article 1(2).
  25. ^ EPO web site, Benoît Battistelli elected EPO President Archived March 6, 2010, at the Wayback Machine, News, 1 March 2010. Consulted on 2 March 2010.
  26. ^ Article 10(1) EPC
  27. ^ Article 5(3) EPC
  28. ^ Decision T 1012/03 of December 1, 2006, Reasons 35.
  29. ^ Article 11(1) EPC
  30. ^ Article 35(2) EPC, which refers to "Article 11, paragraph 1".
  31. ^ See for instance: EPO web site, Decision on next EPO President deferred Archived December 27, 2010, at the Wayback Machine, News, 30 October 2009. Consulted on 31 October 2009.
  32. ^ "Leadership & management".
  33. ^ Bossung, Otto. "The Return of European Patent Law in the European Union". IIC. 27 (3/1996). Archived from the original on March 4, 2012. Retrieved June 30, 2012. Thus the management of the EPO is dominated by the delegates of the contracting States in the Administrative Council. It is entirely natural that their thoughts and actions are primarily guided by their responsibilities in the national sector. Hence it is national interests, the interests of the national patent offices, national patent attorneys, national lobbies, national business sectors and other national interests, that are the decisive forces within the Administrative Council of the EPO.
  34. ^ Article 14(1) EPC
  35. ^ Article 14(7) EPC
  36. ^ Article 14(2) EPC
  37. ^ a b c Guidelines for Examination in the EPO, section a-x, 9.2.1 "Conditions"
  38. ^ Rule 6(1) EPC
  39. ^ Article 14(3) EPC
  40. ^ Article 14(5) EPC
  41. ^ Rule 3(3) EPC
  42. ^ a b Article 14(4) EPC
  43. ^ Rule 6(2) EPC
  44. ^ Rule 6(3) EPC, Rule 6(4) EPC, and RFees 14(1)
  45. ^ Under Article 6(2) EPC.
  46. ^ Article 15 EPC
  47. ^ Article 15(a) EPC and Article 16 EPC
  48. ^ Article 15(b) EPC and Article 17 EPC
  49. ^ Article 15(c) EPC and Article 18(1) EPC
  50. ^ Article 15(d) EPC and Article 19(1) EPC
  51. ^ Article 15(e) EPC and Article 20(1) EPC
  52. ^ Article 15(f) EPC and Article 21 EPC
  53. ^ Article 15(g) EPC and Article 21 EPC
  54. ^ "Structure of the European Patent Office".
  55. ^ Sir Robin Jacob, National Courts and the EPO Litigation System, GRUR Int. 2008, Vol. 8-9, pages 658-662, referring to what he said in Lenzing's Appn. [1997] RPC 245 at p. 277 and repeated in Unilin v. Berry [2007] EWCA Civ. 364.
  56. ^ PCT Newsletter No. 04/2010, page 1, "European Patent Office to Offer Supplementary International Search", and page 7, "Notification under PCT Rule 90.4(d) and 90.5(c) (European Patent Office)" ("... to include its capacity as Supplementary International Searching Authority (SISA).")
  57. ^ As of October 2009, three countries: Luxembourg, Uganda, United Republic of Tanzania, see PCT Reservations, Declarations, Notifications and Incompatibilities (status on 29 September 2009) (PCT Articles, 22(1)) and Article 22(1) PCT (See "Editor's Note").
  58. ^ PCT Applicant’s Guide – International Phase – Annex SISA, SISA International Searching Authorities (Supplementary Search) EP European Patent Office (EPO), 3 June 2010, page 2. Consulted on June 6, 2010.
  59. ^ Rule 143 EPC
  60. ^ "European and international co-operation".
  61. ^ See Five IP offices website.
  62. ^ "EPO and Eurasian Patent Office agree to launch Patent Prosecution Highway". Retrieved 23 February 2021.
  63. ^ "European and international co-operation".
  64. ^ a b Hopquin, Benoît (7 April 2015). "Un si bon office" [Such a good office]. Le Monde (in French). Paris. Retrieved 28 September 2015. - English, German and Dutch translations of "Un si bon office": "Such a good office"
  65. ^ Article 13(1) EPC
  66. ^ ECLI:NL:GHDHA:2015:1245
  67. ^ Judgment: ECLI:NL:GHDHA:2015:255 - Unofficial English translation by SUEPO: "Case No. 200.141.812-01"
  68. ^ a b Feenstra, Willem (26 February 2015). "Opstelten: Uitspraak rechter geldt niet voor europese instelling" [Opstelten: Court ruling does not apply to European institution]. De Volkskrant (in Dutch). The Hague. Retrieved 25 September 2015. - English, French and German translations of "Opstelten: Uitspraak rechter geldt niet voor europese instelling": "Opstelten: Court ruling does not apply to European institution"
  69. ^ "Streit beim Europäischen Patentamt eskaliert", Süddeutsche Zeitung, 11.03.2014
  70. ^ "European Patent Office Staff Calls Strike; President Battistelli Reacts", Intellectual Property Watch, 19.03.2014
  71. ^ "EPO facing more strike action", World Intellectual Property Review, 28.05.2014
  72. ^ "EPO staff in Battistelli fight" ", World Intellectual Property Review, 28.05.2014
  73. ^ "Umstritten und souverän", Die Zeit, 30.03.2014
  74. ^ English translation of "Umstritten und souverän": "Controversial and sovereign" Archived 2014-07-14 at the Wayback Machine
  75. ^ Tauber, Andre (24 August 2014). "Aufstand der Besserverdiener" [Uprising of the high-income earners]. Die Welt (in German). Axel Springer SE. p. 4. Retrieved 2 September 2014.
  76. ^ "Burgfrieden in der Steueroase Europaeisches Patentamt" [Truce in the tax haven of the EPO]. Frankfurter Allgemeine Zeitung (in German). Munich. 24 April 2015. Retrieved 28 September 2015. - English, French and Dutch translations of "Burgfrieden in der Steueroase Europaeisches Patentamt": "Truce in the tax haven of the EPO"
  77. ^ Stoffelen, Anneke (10 September 2015). "Alarm om schrikbewind bij Europees patentbureau na vijfde zelfmoord" [Alarm about reign of terror at the European Patent Office after fifth suicide]. De Volkskrant (in Dutch). The Hague. Retrieved 25 September 2015. - English, French and Dutch translations of "Alarm om schrikbewind bij Europees patentbureau na vijfde zelfmoord": "Alarm about reign of terror at the European Patent Office after fifth suicide"
  78. ^ Sorge, Petra (22 June 2018). "Die unheimliche Wette" [The uncanny bet]. WirtschaftsWoche (in German). No. 26. Retrieved 19 February 2021. (also available here)
  79. ^ Sorge, Petra (24 June 2018). "Scharfe Kritik an Finanzgebaren des Europäischen Patentamts" [Sharp criticism of financial practices of the European Patent Office]. (in German). Handelsblatt GmbH. Retrieved 19 February 2021.
  80. ^ "Parliamentary questions - Question for written answer E-003298/2020 to the Commission - Rule 138 - Clare Daly (GUE/NGL) - Subject: Establishment of a European Patent Organisation Treasury Investment Fund". European Parliament. 2 June 2020. Retrieved 19 February 2021.
  81. ^ "Parliamentary questions - Answer given by Mr Breton on behalf of the European Commission - Question reference: E-003298/2020". European Parliament. 15 September 2020. Retrieved 19 February 2021.
  82. ^ "German law firms raise concerns over EPO patent quality". 15 June 2018. Retrieved 24 February 2024.
  83. ^ Richter, Konstanze (12 October 2022). "Dissatisfied industry users push back against EPO quality measures". JUVE Patent. Retrieved 24 February 2024.
  84. ^ Houldsworth, Adam (10 March 2023). "EPO staff endorse industry patent quality complaints". Retrieved 24 February 2024.
  85. ^ "Deteriorating patent quality: EPO under fire, management is not impressed". Kluwer Patent Blog. 5 July 2023. Retrieved 24 February 2024.
  86. ^ "Beat Weibel: Low quality patents harm European industry". Kluwer Patent Blog. 24 November 2023. Retrieved 24 February 2024.