O

This alphabetical keyword index is not exhaustive.

Oath   E‑IV, 3.2.2

Taking of evidence on oath   E‑IV, 3.2.1

Objection of lack of support   F‑IV, 6.3

Objection to an expert   E‑IV, 1.8.2

Objection under Rule 43(2) or Rule 137(5)   F‑IV, 3.3

Objections arising from missing essential features   F‑IV, 4.5.1

Objections to unsearched inventions   F‑V, 11.2

Objective of the search   B‑II, 2

Obligation to give reasons   H‑III, 3.1.2

Observations by third parties   D‑I, 6, E‑VI, E‑VI, 3

Examination by the EPO of its own motion   E‑VI, 1

Examination of observations by third parties   C‑VII, 5

External complaints   E‑VI, 4

Late filed submissions   E‑VI, 2

Obvious combination of features   G‑VII, An., 2

Obvious selection   G‑VII, An., 3

Obviousness   G‑VII, 4

Offensive and non-offensive use   G‑II, 4.1.2

Official language   

Official languages, of the Contracting States   A‑X, 9.2.1

Official languages, of the EPO   A‑VII, 1.1, E‑IX, 4.3

Use of an official language   E‑V, 1

Omission of matter from publication   F‑II, 7.5

Only variants of the invention are incapable of being performed   F‑III, 5.1

Opening of oral proceedings: non-appearance of a party   E‑III, 8.3

Checking the identity and authorisations of participants at oral proceedings   E‑III, 8.3.1

Late arrival or non-appearance at oral proceedings   E‑III, 8.3.3

Opening the oral proceedings   E‑III, 8.3.2

Opening of the substantive part of the proceedings   E‑III, 8.4

Opening the oral proceedings   E‑III, 8.3.2

Opinion   

Amendments made in response to the search opinion   C‑III, 2.1

Analysis of the application and content of the search opinion   B‑XI, 3

Basis of the search opinion   B‑XI, 2

Comments and amendments in response to the search opinion   B‑XI, 3.3

Decision on the form of the opinion   E‑IV, 1.8.1

Establishment and issue of the technical opinion   E‑XIII, 5.4

Evaluation of an expert opinion   E‑IV, 4.7

No search opinion is issued   B‑XI, 7

Opinions of the search division   B‑III, 1

Opinions in relation to the search report   B‑III, 1.1

Opinions on matters relating to limitation of the search   B‑III, 1.2

Positive opinion   B‑XI, 3.9

Priority claim and the search opinion   B‑XI, 4

Request from a national court for a technical opinion concerning a European patent   E‑XIII

Response to the search opinion   A‑VI, 3, C‑II, 3.1

Scope of the technical opinion   E‑XIII, 2

Search opinion   B‑XI, B‑XI, 1.1

Search opinion in cases of a limitation of the search   B‑XI, 6

Search opinion is part of the EESR   B‑XI, 1

Technical opinion   E‑XIII, 1

Transmittal of the search report and search opinion   B‑X, 12

Unity in relation to the search opinion   B‑XI, 5

Use of "P" and "E" documents in the search opinion   B‑XI, 4.1

Opponent   D‑I, 6, D‑IV, 1.2.2.2

Continuation on the death or legal incapacity of the opponent   D‑VII, 5.2

Death or legal incapacity of an opponent   D‑VII, 5.2

Request for oral proceedings by an opponent whose opposition is to be rejected as inadmissible or is deemed not to have been filed   E‑III, 2.1

Opposition   D‑III

Accelerated processing of oppositions   E‑VIII, 5

Activity of the opposition division   D‑IV, 2

Admissibility of corrections in opposition and limitation proceedings   H‑VI, 2.1.1

Amendments in reply to the notice of opposition   H‑II, 3.1

Amendments not related to the grounds of opposition   H‑II, 3.2

Appeal against the fixing of costs by the opposition division   D‑IX, 2.2

Appeals against the decision of the opposition division on the fixing of costs   E‑XII, 4

Basis of this ground for opposition   D‑V, 6.1

Changes in claim category in opposition   H‑V, 7

Communication in the event of deficiencies as described in D‑IV, 1.2.1, which, if not remedied, will lead to the opposition being deemed not to have been filed   D‑IV, 1.3.1

Communication in the event of deficiencies as described in D‑IV, 1.2.2, which, if not remedied, will lead to rejection of the opposition as inadmissible   D‑IV, 1.3.2

Communications from the opposition division   D‑VI, 4.1

Communications from the opposition division to the patent proprietor   D‑VI, 4

Content of the notice of opposition   D‑III, 6

Continuation after the opposition has been withdrawn   D‑VII, 5.3

Decision concerning the admissibility of an opposition, the patent proprietor being a party   D‑IV, 5.5

Decision concerning the awarding of costs by the opposition division   D‑II, 4.2

Decision on the inadmissibility of an opposition or intervention   D‑VIII, 2.1

Decisions of the opposition division   D‑VIII

Deficiencies which may no longer be remedied in accordance with Rule 77(1) and (2), resulting in the opposition being rejected as inadmissible   D‑IV, 1.4.2

Deficiencies which may no longer be remedied, as a result of which the opposition is deemed not to have been filed   D‑IV, 1.4.1

Deficiencies which, if not remedied, lead to the opposition being deemed not to have been filed   D‑IV, 1.2.1

Deficiencies which, if not remedied, lead to the opposition being rejected as inadmissible   D‑IV, 1.2.2

Derogations from language requirements   D‑III, 4

Examination for deficiencies in the notice of opposition   D‑IV, 1.2

Examination for deficiencies in the notice of opposition and communications from the formalities officer arising from this examination   D‑IV, 1

Examination of oppositions   D‑II, 4.1

Examination of the grounds for opposition   D‑V, 2.2

Examination of the opposition during oral proceedings   D‑VI, 6

Fees for limitation/revocation, opposition, appeal, petition for review   A‑X, 5.2.6

Filing of amended documents in reply to the notice of opposition   D‑IV, 5.3

Filing of opposition after decision on limitation   D‑X, 7.2

Final decisions on an admissible opposition   D‑VIII, 1

Fixing of costs by the opposition division   D‑IX, 2.1

Form of the opposition   D‑III, 3.1

Forwarding of the notice of opposition to the formalities officer   D‑IV, 1.1

Grounds for opposition   D‑III, 5

Impartiality of the examining or opposition division   E‑XI

Invitation to file the translation in examination/opposition   A‑III, 6.8.2

Invitation to the patent proprietor to submit comments and communication of opposition to the other parties concerned by the formalities officer   D‑IV, 5.2

Meaning of opposition   D‑I, 1

Notice of intervention of the assumed infringer   D‑I, 5, D‑VII, 6

Notices of opposition filed by fax   D‑III, 3.3

Notices of opposition filed electronically   D‑III, 3.2

Opposition after surrender or lapse   D‑I, 2

Opposition cases with different texts where a transfer of rights by virtue of a final decision pursuant to Art. 61 took place in examination proceedings   H‑III, 4.3.3

Opposition division’s communications   D‑VI, 3.1

Opposition Divisions   D‑II

Administrative structure   D‑II, 1

Allocation of duties and appointment of members of the opposition division   D‑II, 3

Allocation of individual duties   D‑II, 7

Allocation of tasks to members   D‑II, 5

Composition   D‑II, 2

Decisions taken by the examining or opposition divisions   E‑X, 2

Duties and powers of members   D‑II, 6

Tasks of the opposition divisions   D‑II, 4

Opposition fee   D‑III, 2

Opposition   D‑III, 2

Opposition procedure   

Admissibility in opposition procedure   H‑II, 3

Examples concerning oral proceedings in opposition procedure   E‑VI, 2.2

Opposition proceedings   

Auxiliary requests: in opposition proceedings   H‑III, 3.4

Compliance of amendments with other EPC requirements: in opposition proceedings   H‑IV, 4.3

Continuation of the opposition proceedings in the cases covered by Rule 84   D‑VII, 5

Correction of errors under Rule 140 while opposition proceedings are pending   H‑VI, 3.5

Costs   D‑IX, 1.1

Decision on closure of the opposition proceedings   D‑VIII, 2.5

Different texts where a transfer of the patent in respect of certain designated states takes place in opposition proceedings   H‑III, 4.3.2

Documents   E‑III, 8.7.1

General examples in opposition proceedings   E‑VI, 2.1

Intervention in opposition proceedings   D‑I, 5, D‑VII, 6

Late-filed requests in opposition proceedings   H‑II, 3.5

Opposition proceedings (inter partes)   E‑III, 8.5.1.1

Opposition proceedings where the claims as granted are different for different contracting states   H‑III, 4.5

Oral proceedings   D‑VI, 3.2, D‑VI, 7.1, E‑III, 3, E‑III, 8.1

Parties   D‑I, 6

Parties to opposition proceedings   D‑I, 6

Precedence of opposition proceedings   D‑X, 7.1

Procedure in opposition proceedings   E‑III, 8.3.3.2, E‑III, 8.7.3

Relation to opposition proceedings   D‑X, 7

Revocation proceedings   D‑X, 2.1

Termination of opposition proceedings in the event of inadmissible opposition   D‑IV, 4

Procedure for the examination of the opposition   D‑VI

Rejection of the opposition   D‑VIII, 1.3

Rejection of the opposition as inadmissible by the opposition division, the patent proprietor not being a party   D‑IV, 3

Request for oral proceedings by an opponent whose opposition is to be rejected as inadmissible or is deemed not to have been filed   E‑III, 2.1

Several oppositions   D‑IV, 5.2

Signature of the notice of opposition   D‑III, 3.4

Submission in writing   D‑III, 3

Substantive examination of opposition   D‑V

Territorial effect of the opposition   D‑I, 3

Time allowed for filing notice of opposition   D‑III, 1

Time limit for filing notice of opposition   D‑III, 1, D‑IV, 1.2.2.1

Optional features   F‑IV, 4.9

Oral   

Oral disclosure, etc.   B‑VI, 2

Oral proceedings   C‑VII, 4, D‑VI, 1, E‑III, H‑III, 3.4.2, H‑III, 3.5.3

Auxiliary requests: in limitation proceedings   H‑III, 3.5.3

Auxiliary requests: in opposition proceedings   H‑III, 3.4.2

Cancellation or maintenance of oral proceedings   E‑III, 7.2

Checking the identity and authorisations of participants at oral proceedings   E‑III, 8.3.1

Closure of oral proceedings   E‑III, 8.11

Communications/oral proceedings after resumption   C‑V, 4.7.1

Conduct of oral proceedings   E‑III, 8

Costs   D‑IX, 1.1, D‑IX, 1.3, E‑III, 8.3.3.1, E‑IV, 1.9

Costs arising from oral proceedings or taking of evidence   E‑IV, 1.9

Delivery of the decision   E‑III, 9

Derogations from the language of the proceedings in oral proceedings   A‑VII, 4, E‑V

Examination of the opposition during oral proceedings   D‑VI, 6

Examples concerning oral proceedings in opposition procedure   E‑VI, 2.2

Handwritten amendments in oral proceedings   E‑III, 8.7

Language of proceedings   A‑VII, 4

Late arrival or non-appearance at oral proceedings   E‑III, 8.3.3

Late-filed requests after summons to oral proceedings in examination   H‑II, 2.7

Minutes of oral proceedings   E‑III, 10

Opening of oral proceedings: non-appearance of a party   E‑III, 8.3

Opening the oral proceedings   E‑III, 8.3.2

Oral proceedings at the instance of the EPO   E‑III, 4

Other procedures in examination   C‑VII, 4

Postponement of oral proceedings   E‑III, 7.1, E‑III, 7.1.3

Postponement of oral proceedings at the instigation of the division   E‑III, 7.1.2

Postponement, cancellation or maintenance of oral proceedings   E‑III, 7

Preparation of oral proceedings   E‑III, 5

Request for further oral proceedings   E‑III, 3

Request for oral proceedings by an opponent whose opposition is to be rejected as inadmissible or is deemed not to have been filed   E‑III, 2.1

Requesting postponement during oral proceedings   E‑III, 8.11.1

Requests for the postponement of oral proceedings   E‑III, 7.1.1

Rule 137(4) and oral proceedings   H‑III, 2.1.3

Status of oral proceedings held by video-conference   E‑III, 11.1.2

Summons to oral proceedings   E‑III, 6

Summons to oral proceedings as the first action in examination   C‑III, 5

Use of computer-generated slideshows in oral proceedings   E‑III, 8.5.1

Use of laptops or other electronic devices during either ex parte or inter partes oral proceedings   E‑III, 8.2.1

Use of Rule 137(4) for amendments filed during oral proceedings in examination   E‑III, 8.8

When can summons to oral proceedings be issued in substantive examination   E‑III, 5.1

Withdrawal of the request for oral proceedings   E‑III, 7.2.2

Oral proceedings and interviews held by video-conference   E‑III, 11

Checking the identity of the representative   E‑III, 11.5

Preparations for the video-conference   E‑III, 11.2

Recording of the video-conference   E‑III, 11.6

Requests for video-conferencing   E‑III, 11.1

Submissions   E‑III, 11.3

Technical problems   E‑III, 11.4

Oral proceedings at the request of a party   E‑III, 2

Request for oral proceedings by an opponent whose opposition is to be rejected as inadmissible or is deemed not to have been filed   E‑III, 2.1

Order   E‑X, 1.3.1

Date of receipt of the debit order   A‑X, 4.2.4

Debit orders   A‑X, 6.2.3

Debit orders for deposit accounts held with the EPO   A‑II, 1.6

Manner and order of presentation   F‑II, 4.10

Order of claims   F‑IV, 4.24

Order to take evidence   E‑IV, 1.4

Orders on remittal   E‑XII, 9.1

Ordre public   

Inventions contrary to ordre public   G‑II, 4.1

Matter contrary to "ordre public" or morality   F‑II, 7.2, G‑II, 4.1

Morality or "ordre public"   A‑III, 8.1

Organisation   

Organisation and composition of the documentation available to the search divisions   B‑IX, 1.1

Payment or transfer to a bank account held by the European Patent Organisation   A‑X, 4.1

Origin of an invention   G‑VII, 9

Original application no longer pending   C‑IX, 2.2

Other procedures in examination   C‑VII

Examination of observations by third parties   C‑VII, 5

Oral proceedings   C‑VII, 4

Taking of evidence   C‑VII, 3

Telephone conversation, personal interview, e-mail   C‑VII, 2

Overcoming a technical prejudice   G‑VII, An., 4

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