Dr. Thomas W. Reimann

Of Counsel

Thomas W. Reimann has worked as an attorney since 1973 and can draw on over forty years of unrivalled experience in intellectual property. He advises and acts on behalf of clients in all intellectual property matters. He is specialized in patent litigation in all technical fields, acts on behalf of his clients before the national German courts and plans and coordinates multi-national litigation cases.

In addition, he also takes part in opposition and nullity proceedings at a national level and before the European Patent Office. Thomas is the author of various books and articles on intellectual property law.

Between 1993 and 2008 he was chairman of the Committee on Patents and Utility Models of GRUR, the German Association for Intellectual Property and Copyright Law.

    • Representing a global pharmaceutical originator company in multi-jurisdiction blockbuster patent litigation concerning biosimilars (2014 – 2015)
    • Representing and advising one of the major pharmaceutical originator companies in patent litigation and other patent law matters (2014 – 2015)
    • Extensive advice to a global leader in the food and beverage industry on the patent portfolio of a major competitor in relation to the development and market entry of a new product (2012 – 2015)
    • Representing a global leader in packaging in extensive patent litigation (2010 – 2015)
    • American Intellectual Property Law Association (AIPLA)
    • International Association for the Protection of Intellectual Property (AIPPI)
    • European Patent Lawyers Association (EPLAW)
    • German Association for the Protection of Intellectual Property (GRUR)
    • Intellectual Property Owners Association (IPO)
    • Licensing Executives Society (LES)
    • Association of Intellectual Property Experts (VPP)
    • Reimann/Hahn, Orange-Book – Ratgeber oder Buch mit sieben Siegeln?, in Festschrift für Wolfgang von Meibom, Köln 2010, 373-494
    • Reimann, Das Patent als sein eigenes Lexikon – die “Spannschraube” mehrgängig betrachtet, VPP Rundbrief September 2005, p. 97 – 108.
    • Reimann, Markenrecht Abschnitte 4.-7, in: Münchener Vertragshandbuch, vol. 3. Wirtschaftsrecht II, Teil VI, 5th edition, München 2004
    • Reimann/Kreye, Weiteres zur Aussetzung des Patentverletzungsverfahrens, in: Festschrift für Winfried Tilmann, Köln 2003, 587-597
    • Haft/Reimann, Zur Berechnung des Verletzergewinns nach der “Gemeinkostenanteil”-Entscheidung des BGH vom 2. November 2000, 2003, 437-445
    • Reimann, Brand management – country analysis: Germany, Intellectual Property Handbook, 2000, 95-103
    • Reimann, Einige Überlegungen zur Offenkundigkeit im Rahmen von §§ 17 ff. UWG und von § 3 PatG, in: Festschrift für Ulrich Krieger, Weinheim 1998, 298-302 (GRUR 1998, 298-302)
    • Reimann/Wagner, Franchising: Franchise-Vertrag, in: Münchener Vertragshandbuch Bd. 3/1.Halbband, 4th edition, München 1998, 497-564
    • Reimann/Wissel/Grützner, Richtiges Verhalten bei Kartellamtsermittlungen im Unternehmen: Fallstudie mit Erläuterungen zu den Ermittlungsverfahren in Kartellsachen nach deutschem und EG-Kartellrecht, 3th edition, Heidelberg 1993
    • Reimann/Köhler, Der Schutzbereich europäischer Patente zwischen Angemessenheit und Rechtssicherheit, GRUR 2002, 931-935 Reimann, How to obtain evidence for patent litigation in West Germany, International Business Lawyer 1988, 317-320
    • Reimann, Anmerkung zu: BGH, Urteil vom 4.2.1982 – X ZR 61/80 “Verteilergehäuse”, GRUR 1982, 410-411
    • Reimann, Rezension: Eugen Langen, Transnationales Recht, Heidelberg 1981, GRUR Int. 1982, 486-487
    • Reimann, Anmerkung zu: BGH, Beschluss vom 16.6.1981 – KVZ 3/80 „Jeans-Supermarkt“, GRUR 1982, 842-846
    • Global Leader, iam Patent 1000, 2023, 2021
    • « IP Star » (Patent, Germany), Managing Intellectual Property IP Stars 2021
    • Luminary Thomas Reimann who continues to guide the firm and devise astute global litigation strategies is an eminent figure of almost 50 years’ standing who manages global disputes with a sure touch, while also taking part in German and EPO opposition and nullity proceedings. iam Patent 1000, 2021
    • Senior Statespeople for Intellectual Property: Patent Litigation – Germany; Chambers Europe and Global 2020
    • Having over 40 years of experience under his belt, Thomas Reimann is regulary asked for advice by his teammates. He is a true pioneer in the German IP world. iam Patent 1000, 2018
    • Revered by the IP community, Thomas Reimann is a true luminary with over 40 years’ experience. iam Patent 1000, 2017
    • Often recommended for Patent Law, JUVE Handbuch 2016/2017
    • “very experienced”, Legal 500 2016
    • Thomas Reimann is a “highly thought of” practitioner, who is recommended for his patent litigation work […], Patents, Who’s who legal  Germany 2015
    • “highly capable practitioner”, Life Sciences, Who’s who legal Germany 2015
    • “incredibly experienced”, The Legal 500 EMEA 2014
    • “Thomas Reimann is very impressive and always to the point, according to commentators.” Chambers Europe 2010
    • “Thomas Reimann brings over 35 years of experience to the ”, Who’s who legal 2010
    • “Thomas Reimann and Klaus Haft are both absolutely excellent.”, Managing intellectual property handbook 2010
    • “Thomas Reimann is described as an ‘excellent and experienced patent litigator’, who is active in technology, chemical and pharmaceutical sectors.”, Chambers Europe 2009

Nos bureaux


Steinstraße 20
40212 Düsseldorf

Adresse postale:

Steinstraße 20
40212 Düsseldorf



German, English


Higher Regional Court (Law), Dr. jur., University of Bonn (1970)

University of Munich (Law, 1963)