Judgment_paragraph 26 · Neoperl AG v European Union Intellectual Property Office (T-487/21)

26Thus, the EU Courts have the power and, where appropriate, a duty to raise certain pleas of substantive legality of their own motion (Opinion of Advocate General Tanchev in Changmao Biochemical Engineering v Commission, C‑666/19 P, EU:C:2021:827, point 25). Such is the case, for example, in respect of the plea of substantive legality claiming the force of res judicata with absolute effect (see, to that effect, judgment of 1 June 2006, P & O European Ferries (Vizcaya) and Diputación Foral de Vizcaya v Commission, C‑442/03 P and C‑471/03 P, EU:C:2006:356, paragraph 45).