If an agent is required (because the applicant neither has his residence, nor his principal place of business, nor an establishment in Germany): any patent attorney, attorney-at-law, or firm of representatives established in Germany and authorized to represent the applicant in proceedings before the Office
The list of patent attorneys may be obtained from the Patentanwaltskammer (Chamber of Patent Attorneys), Postfach 260108, 80058 München, Germany, and the list of attorneys-at-law from the Bundesrechtsanwaltskammer (Chamber of Attorneys-at-Law), Littenstrasse 9, 10179 Berlin, Germany.
Any patent attorney or attorney-at-law of a member State of the European Union, of a contracting party to the Agreement on the European Economic Area, or of Switzerland, authorized to either practice in Germany, or to provide temporary services, and empowered to represent the applicant in proceedings before the Office (refer to the Act on the Activities of Patent Attorneys from EU member states in Germany (EuPAG) and the Act on the Activities of European Lawyers in Germany (EuRAG))
If an agent is not required: as mentioned above and any natural person
In accordance with the provisions of the Legal Services Act (Rechtsdienstleistungsgesetz – RDG).