Case C-183/21: Judgment of the Court (Tenth Chamber) of 10 March 2022 (request for a preliminary ruling from the Landgericht Saarbrücken — Germany) — Maxxus Group GmbH & Co. KG v Globus Holding GmbH & Co. KG (Reference for a preliminary ruling — Approximation of laws — Trade marks — Directive (EU) 2015/2436 — Article 19 — Genuine use of a trade mark — Burden of proof — Application to revoke for non-use — National procedural rule obliging the applicant to carry out market research concerning use of the mark)