T 0405/24 - G 1/24 and Art. 123(2)

Key points

• The proprietor: "Thus, when applying the conclusions of G 1/24, i.e. in particular that the description and the drawings shall always be "consulted" to interpret a claim, to the present case, the skilled person in the field of data communications would have understood that such "forwarding" was providing a basis for the "routing" action of feature 1.7. In other words, [the proprietor argued that], if multiple technically sensible interpretations of a certain claim feature exist, the one which is supported by the patent description should prevail.
• The Board: "This argument is flawed right from the outset. First, even if the Order of the G 1/24 (related to assessing compliance with Articles 52 to 57 EPC only) could indeed be extrapolated to the assessment of compliance with Article 123(2) EPC, there is no indication in G 1/24 that "consulting" or "referring to" the description and drawings could translate to adopting a claim interpretation which ensures that the disputed feature is originally disclosed and thus necessarily complies with Article 123(2) EPC. 
• Such an approach which inherently assumes that there may be only one "correct" interpretation of a claim feature, namely the one derivable from the original description as its intended meaning (which is apparently advocated e.g. by T 367/20-3.2.03, Reasons 1.3.9 and 1.3.16 in the event of "mutually exclusive" interpretations or by the recent decision T 2048/22-3.3.02, Reasons 1.2.1 and 1.2.2 in the case of claim ambiguities), would not lead to an objective assessment of compliance with Article 123(2) EPC and thus jeopardise legal certainty. It would be tantamount to interpreting a claim feature such that, in the end, virtually no violation of Article 123(2) EPC within the meaning of the well-established "gold standard" could arise. 
• Rather, there is a significant body of case law holding that all technically reasonable interpretations of a disputed claim feature are to be taken into account when assessing compliance with Article 123(2) EPC (see e.g. T 945/20-3.4.02, Reasons 2.4; T 470/21-3.3.05, Reasons 2.1; T 2034/21-3.3.04, Reasons 11; T 193/22-3.3.06, Reasons 3.5)."
• As a comment, adding the number of the Board when citing a decision is not always done, but it can be helpful in specific contexts.
• Secondly, it would be good if there were more unity in the case law.
• Thirdly,  I'm not sure if I fully understand the Board's reasoning that "It would be tantamount to interpreting a claim feature such that, in the end, virtually no violation of Article 123(2) EPC within the meaning of the well-established "gold standard" could arise." 

EPO 

The link to the decision is provided after the jump.

https://www.epo.org/en/boards-of-appeal/decisions/t240405eu1