6.1.12.5.2 Citation Category

Date Published

Key Legislation:

PCT ISPE Guidelines:

Administrative Instructions under the PCT:

  • s505 Indication of Citations of Particular Relevance in the International Search Report

  • s507 Manner of Indicating Certain Special Categories of Documents Cited in the International Search Report

  • s508 Manner of Indicating the Claims to Which the Documents Cited in the International Search Report Are Relevant

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Introduction

Documents that are cited are given a category indication by way of an alphabetic character. A category should always be indicated for each document cited. The categories for citations are also explained under the ‘Documents considered to be relevant’ section of the report. Specific instructions are given in PCT Administrative Instructions 505 and 507 as well as PCT/GL/ISPE/12 at paragraph 16.65. Examples of completed example International Search Reports (ISRs) are provided in Annex B and Annex C.

Documents with more than one category

A particular document may have more than one category specified in the report. For instance a citation may be an anticipation and so be indicated as X, and also in its introductory portion contain a good description of the developments in the appropriate field up to that time, and so also be indicated as A (see PCT Ad. Inst. 508).

A separate line is to be used for each category assigned. The examiner must indicate particularly relevant passages of citations. In identifying relevant passages in the ISR, examiners should ‘summarise’ the relevant passages identified for each document in the International Search Opinion (ISO). For example, if the ISO discusses a certain feature disclosed at column 10, lines 23 – 35, in the ISR it would only be necessary to refer to column 10 (refer to Annexes B and C for examples). References in the ISR that merely state ‘See whole document’ are not useful and should be avoided where features are not readily apparent from the citation (e.g., due to interpretation/construction/contextual issues, inherency or features hidden in a lengthy specification).

Two documents as a single source of information

In situations where there are two documents which are to be read as a single source of information, the two documents can be combined for novelty considerations under paragraph 12.06 of PCT/GL/ISPE/12, the primary document should be categorised as ‘X,’ while the second document (which is referred to explicitly in the primary document) should be categorised as ‘L.’

Documents cited for inventive step

Where a citation is combined with common general knowledge to support an inventive step objection regardless of whether documentary evidence is used to demonstrate common general knowledge, it should be categorised as ‘X’ (see 6.1.8.4 Search Considerations and Annex I for examples of inventive step objections).

Note: In cases where documentary evidence is used to support an assertion of common general knowledge the documentary evidence should be categorised as ‘A.’

A ‘Y’ category indicates the document is relevant for use in an inventive step objection when it is combined with at least one other document (i.e., ‘mosaicking’). It follows that there must always be at least two ‘Y’ documents. See also 5.6.4.4 Single source of information, combination of documents | Combination of Documents for Inventive Step.

Amended Reasons

Amended Reason Date Amended

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Added link to RIO guidance material for processing PCT tasks citations section.

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