Friday, December 06, 2019 T 184/17 - Inventive step not raised earlier but admitted in appeal

In the present case, a lack of inventive step was invoked by the respondent-opponent for the first time in appeal. The lack of inventive step relies on the same passages of the same prior art document used in the earlier -unsucesfully- lack of novelty objection. The appellant-proprietor submitted that the inventive step objection constituted a fresh ground for opposition, and that its introduction into the appeal proceedings is only possible with the consent of the appellant-proprietor, which it did not give. The Board observed that "the new objection relies on the same passages and teaching of the document as the unsuccessful novelty objection, duly raised and substantiated with the notice of opposition. In other words, the lack of inventive step attack as raised in appeal stays within the factual and evidentiary framework relied upon by the opponent in the notice of opposition under the ground of Article 100(a) EPC for novelty. This raises the question whether under such special circumstances, the new objection still falls under the principle as expressed in G10/91, or can be admitted into the appeal proceedings without the agreement of the patentee."