WilmerHale (Brussels)

Claus-Dieter Ehlermann

WilmerHale (Brussels)
Lawyer (Senior Counsel)

Professor Dr. Claus-Dieter Ehlermann is a senior counsel in the WilmerHale’s Regulatory and Government Affairs Department, and a member of the Antitrust and Competition, European Regulatory, and International Trade, Investment and Market Access Practice Groups. Professor Dr. Ehlermann is one of the leading authorities on international trade, European competition and EU administrative law. Professor Dr. Ehlermann has represented governments before the WTO dispute settlement body, and he has been retained as advisor to certain governments, industry federations and undertakings involved in WTO disputes. Professor Ehlermann has been engaged to submit an expert opinion in the context of NAFTA litigation. He has also acted as an Arbitrator under Article 21.3(c) of the Dispute Settlement Understanding of the WTO. With regard to EC law, Professor Dr. Ehlermann represents companies in EC competition law matters, most recently assisting companies in merger control procedures, State aid and international arbitration proceedings. On the regulatory side, Professor Ehlermann has advised major companies in Europe and the United States on the impact of current and pending EU legislation. Professor Dr. Ehlermann was a member of the Appellate Body of the World Trade Organization in Geneva from December 1995 through 2001, serving as chairman during the last year of his mandate. Prior to his service on the WTO Appellate Body, Professor Dr. Ehlermann held several senior positions with the European Commission. He was Director-General of the Directorate-General for Competition (1990-1995), Spokesman and Special Adviser for Institutional Questions of President Jacques Delors (1987-1990) and Director-General of the Legal Service of the European Commission (1977-1987). Professor Dr. Ehlermann is considered to be one of the leading academic thinkers on EC law and has published widely. He was chair of EC Law at the European University Institute (Florence). Member of the Scientific Committee of Concurrences.

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795 Bulletin

Claus-Dieter Ehlermann, John Ratliff The EU Court of Justice rules on the standard of judicial review in merger cases and clarifies the burden of proof upon the Commission in conglomerate mergers cases (Tetra Laval / Sidel)


On 15 February 2005, the European Court of Justice (ECJ) dismissed the European Commission’s appeal in the Tetra Laval/Sidel merger case. The ECJ’s judgment establishes two significant principles that apply beyond the facts of this particular case: • The judgment confirms that the Court of First (...)

8088 Review

Claus-Dieter Ehlermann The EC draft Guidelines on Article 82 EC


"At the end of December 2005, DG Competition published its much-awaited “Discussion Paper on the application of EC Treaty competition rules on abuse of dominant position (Article 82)”*. In the meantime, the public consultation period has been closed. The reasons requiring a review of the current (...)


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