G 9/93

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G 9/93
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Enlarged Board of Appeal of the European Patent Office

Contents

ECLI:EP:BA:1994:G000993.19940706
Decision issued on 6 July 1994
Board composition
Chairman: P. Gori
Members: J. Brinkhof, K. Bruchhausen, P. Lançon, E. Persson, R. Schulte, P. van den Berg
Headword
Opposition by patent proprietor

G 9/93 is a decision issued on 6 July 1994 by the Enlarged Board of Appeal of the European Patent Office (EPO). Unlike the revised European Patent Convention 2000, there used to be no explicit provision in the former European Patent Convention 1973 that allowed a patent proprietor to have one's own patent revoked. A patent proprietor may, however, seek a revocation of one's own patent. For example, the patent proprietor may want to avoid costly revocation proceedings concerning a patent owned by that proprietor. In an earlier decision G 1/84, the Enlarged Board of Appeal dealt with the issue of a patent proprietor opposing one's own patent and held such oppositions admissible. The Enlarged Board of Appeal dealt with the same issue again in later decision G 9/93 and it overruled its earlier decision G 1/84 thereby holding oppositions against one's own patents inadmissible. [1]

Questions referred to the Enlarged Board of Appeal

The referral to the Enlarged Board of Appeal lies from an interlocutory decision T 788/90 [2] from Technical Board of Appeal 3.2.01. The referred questions are:

(1) Given the Enlarged Board of Appeal's new interpretation in decision G 9/91 and opinion G 10/91 of the basis for the opposition procedure, can a European patent be opposed by its own proprietor?

(2) If so, do the Board of Appeal's powers of review in such a case depend on the extent to which the patent was opposed in the notice of opposition?

Answer to the referred questions

The Enlarged Board of Appeal answered these questions as follows:

(1) A European patent cannot be opposed by its own proprietor.

Practical aspects

A new provision in the form of Article 105a EPC was introduced in consequence of the inadmissbiity of self-opposition under G 9/93. [3] Unlike the former EPC 1973, the revised EPC 2000 has a provision (Article 105a EPC) allowing for revoking one's own patent. Accordingly, a patent proprietor can request revocation of their own patent via that provision instead of opposing their own patents.

In addition to the revocation provision in Article 105a EPC, there also is a limitation procedure provided for in Article 105b EPC. Accordingly, patent proprietors cannot only have their patents revoked; they can also have the scope of their European patents limited post-grant.

Related Research Articles

The patentability of software, computer programs and computer-implemented inventions under the European Patent Convention (EPC) is the extent to which subject matter in these fields is patentable under the Convention on the Grant of European Patents of October 5, 1973. The subject also includes the question of whether European patents granted by the European Patent Office (EPO) in these fields (sometimes called "software patents") are regarded as valid by national courts.

<span class="mw-page-title-main">European Patent Convention</span> International patent treaty

The European Patent Convention (EPC), also known as the Convention on the Grant of European Patents of 5 October 1973, is a multilateral treaty instituting the European Patent Organisation and providing an autonomous legal system according to which European patents are granted. The term European patent is used to refer to patents granted under the European Patent Convention. However, a European patent is not a unitary right, but a group of essentially independent nationally enforceable, nationally revocable patents, subject to central revocation or narrowing as a group pursuant to two types of unified, post-grant procedures: a time-limited opposition procedure, which can be initiated by any person except the patent proprietor, and limitation and revocation procedures, which can be initiated by the patent proprietor only.

The EPC 2000 or European Patent Convention 2000 is the version of the European Patent Convention (EPC) as revised by the Act Revising the Convention on the Grant of European Patents signed in Munich on November 29, 2000. On June 28, 2001, the Administrative Council of the European Patent Organisation adopted the final new text of the EPC 2000. The EPC 2000 entered into force on December 13, 2007.

The European Patent Convention (EPC), the multilateral treaty instituting the legal system according to which European patents are granted, contains provisions allowing a party to appeal a decision issued by a first instance department of the European Patent Office (EPO). For instance, a decision of an Examining Division refusing to grant a European patent application may be appealed by the applicant. The appeal procedure before the European Patent Office is under the responsibility of its Boards of Appeal, which are institutionally independent within the EPO.

The opposition procedure before the European Patent Office (EPO) is a post-grant, contentious, inter partes, administrative procedure intended to allow any European patent to be centrally opposed. European patents granted by the EPO under the European Patent Convention (EPC) may be opposed by any person from the public. This happens often when some prior art was not found during the grant procedure, but was only known by third parties.

T 641/00, also known as Two identities/COMVIK, is a decision of a Technical Board of Appeal of the European Patent Office (EPO), issued on September 26, 2002. It is a landmark decision regarding the patentable subject matter requirement and inventive step under the European Patent Convention (EPC). More generally, it is a significant decision regarding the patentability of business methods and computer-implemented inventions under the EPC.

<span class="mw-page-title-main">Grant procedure before the European Patent Office</span>

The grant procedure before the European Patent Office (EPO) is an ex parte, administrative procedure, which includes the filing of a European patent application, the examination of formalities, the establishment of a search report, the publication of the application, its substantive examination, and the grant of a patent, or the refusal of the application, in accordance with the legal provisions of the European Patent Convention (EPC). The grant procedure is carried out by the EPO under the supervision of the Administrative Council of the European Patent Organisation. The patents granted in accordance with the EPC are called European patents.

In European patent law, the limitation and revocation procedures before the European Patent Office (EPO) are post-grant, ex parte, administrative procedures allowing any European patent to be centrally limited by an amendment of the claims or revoked, respectively. These two procedures were introduced in the recently revised text of the European Patent Convention (EPC), i.e. the so-called EPC 2000, which entered into force on 13 December 2007.

Article 84 of the European Patent Convention (EPC) specifies that the "matter" for which patent protection is sought in an application - the purported invention - shall be stated ("defined") in the claims. This legal provision also requires that the claims must be clear and concise, and supported by the description. The function, form and content of the claims are defined by Article 84 supplemented by Rule 43 EPC.

Article 123 of the European Patent Convention (EPC) relates to the amendments under the EPC, i.e. the amendments to a European patent application or patent, and notably the conditions under which they are allowable. In particular, Article 123(2) EPC prohibits adding subject-matter going beyond the content of the application as filed, while Article 123(3) EPC prohibits an extension of the scope of protection by amendment after grant. In addition, Rule 80 EPC limits the types of amendments that can be done during opposition proceedings before the European Patent Office (EPO), and Rule 139 EPC relates to the correction of errors in documents filed with the EPO.

Article 83 of the European Patent Convention (EPC) relates to the disclosure of the invention under the European Patent Convention. This legal provision prescribes that a European patent application must disclose the invention in a manner sufficiently clear and complete for it to be carried out by a person skilled in the art.

Under case number G 3/08, the Enlarged Board of Appeal of the EPO issued on May 12, 2010 an opinion in response to questions referred to it by the President of the European Patent Office (EPO), Alison Brimelow, on October 22, 2008. The questions subject of the referral related to the patentability of programs for computers under the European Patent Convention (EPC) and were, according to the President of the EPO, of fundamental importance as they related to the definition of "the limits of patentability in the field of computing." In a 55-page long opinion, the Enlarged Board of Appeal considered the referral to be inadmissible because no divergent decisions had been identified in the referral.

The restitutio in integrum or re-establishment of rights under the European Patent Convention (EPC) is a means of redress available to an applicant or patent proprietor who has failed to meet a time limit in spite of exercising "all due care required by the circumstances". The legal basis for this means of redress is provided in Article 122 EPC. If the request for restitutio in integrum is accepted, the applicant or patentee is re-established in its rights, as if the time limit had been duly met.

G 1/21 is a decision issued on 16 July 2021 by the Enlarged Board of Appeal of the European Patent Office (EPO) regarding the legality of holding oral proceedings at the EPO by videoconference without the consent of the parties. Namely, the Enlarged Board of Appeal held that "[d]uring a general emergency impairing the parties' possibilities to attend in-person oral proceedings at the EPO premises, the conduct of oral proceedings before the boards of appeal in the form of a videoconference is compatible with the EPC even if not all of the parties to the proceedings have given their consent to the conduct of oral proceedings in the form of a videoconference." The reasoning in the written decision further indicates that, if a party so requests, oral proceedings must be held in person at the EPO premises, except in absolutely exceptional cases.

G 1/10 is a decision issued on 23 July 2012 by the Enlarged Board of Appeal of the European Patent Office (EPO), holding that Rule 140 EPC cannot be used to request corrections of the text of a European patent.

G 1/13 is a decision issued on 25 November 2014 by the Enlarged Board of Appeal of the European Patent Office (EPO), holding that in opposition proceedings a retroactive effect of a restoration of a company must be recognised by the EPO. In other words, a restoration of a company has retroactive effect before the EPO when it has such retroactive effect under national law.

G 2/93 is a decision issued on 21 December 1994 by the Enlarged Board of Appeal of the European Patent Office (EPO). The decision deals with deposits of biological material. More specifically, the decision deals with the time limit for the deposit of such material. The current provision in Rule 32(2)(a) EPC provides for a time limit of sixteen months from the date of filing or from the date of priority, whichever expires earlier.

G 1/83, G 5/83 and G 6/83 are landmark decisions issued on 5 December 1984 by the Enlarged Board of Appeal of the European Patent Office (EPO) on the patentability of second or further medical use of a known substance or composition. They deal with patent claims directed to such second or subsequent medical use, and, as explained in reason 22 of decision G 5/83, the Enlarged Board held that patent claims directed to such substances or compositions were allowable under the European Patent Convention (EPC) when worded as purpose-limited product claims, which are also referred to as "Swiss-type use claims". These decisions are the first decisions issued by the Enlarged Board of Appeal.

G 4/95 is a decision issued on 19 February 1996 by the Enlarged Board of Appeal of the European Patent Office (EPO). The decision deals with oral submissions by an accompanying person in opposition or opposition appeal proceedings, and more specifically the extent and the circumstances under which an accompanying person or similar may add to the authorized representative's submissions during oral proceedings. The Enlarged Board of Appeal held that an accompanying person may be allowed to make oral submissions in relation to either legal or technical issues provided that the authorized representative maintains overall control at all times and "under the overall discretionary control of the EPO".

References

  1. Romuald Singer, Margarete Singer, Dieter Stauder, Europäisches Patentübereinkommen - Artikel 112, page 832, 5th edition, Carl Heymanns Verlag, 2010.
  2. Interlocutory decision T 788/90 of 28 October 1993
  3. Kaisa Suominen, Peter de Lange, Andrew John Rudge, VISSER'S ANNOTATED EUROPEAN PATENT CONVENTION, Article 105a EPC, chapter 1, page 264, Wolters Kluwer, 2022.