Christian Gassauer-Fleissner


Gassauer-Fleissner Rechtsanwälte
Wallnerstrasse 4

Tel: +43 1 205 206-100
Fax: +43 1 205 206-105


At the beginning of his career Christian Gassauer-Fleissner was active mainly in the areas of corporate law and M&A,intellectual property, unfair competition, general commercial, contract, real estate and employment law.
Following his admission to the Austrian bar, his principal practice areas included intellectual property, corporate and M&A as well as advice to entrepreneurs, family-owned industry and private clients and contract law.

Over the past few years he has increasingly focused on patent, trademark and unfair competition law as well as on comprehensive advice and assistance to entrepreneurs, family-owned industry (including M&A) and private foundations. He also advises institutions in the areas of sports, culture and science. Christian Gassauer-Fleissner has been appointed as arbitrator in a number of national and international arbitral proceedings.


AIPPI, APEB, APRAM, Ligue Internationale du Droit de la Concurrence, Austrian Association for Industrial Property and Copyright, LES, EPLAW (President), ECTA, INTA (INTA-ACEC Outreach Subcommittee), TIPLO, MARQUES, Federation of Austrian Private Foundations, Austrian Association for Arbitration, IBA, UIA, IPBA, ILA, DACH, Austrian Association for Comparative Law, Austrian Association for European Law, Member of the Law Committee of the Austrian Federation of Industry


German, English, French

IP law is one of the main practice areas of Gassauer-Fleissner Rechtsanwälte GmbH (“GFR”). We act as counsel to Austrian and international corporations and institutions. Our clients include high-tech companies and manufacturers of branded goods as well as professionals and institutions active in art, sports and science. International rankings such as Legal500, Legal Experts, Global Counsel 3000 and Managing Intellectual Property regularly list GFR among Austria’s leading IP law firms. The members of our IP team are lawyers of excellent renown, who are also active as lecturers at seminars and conferences and are the authors of numerous relevant specialist publications.

Our IP practice covers all matters related to industrial property rights, including patents, utility models, trademarks, product piracy, domains, designs, know-how, copyright law and unfair competition. A major focus of our work is the litigious enforcement of intellectual property rights before the courts, as well as strategic protection against product piracy. We also advise our clients in connection with IP related contractual agreements, such as e.g. confidentiality agreements, cooperation agreements, licensing and other exploitation agreements, and in connection with the registration of trademarks, designs and domains, and represent our clients’ interests before the relevant national and international authorities. Last but not least our services also cover all aspects of unfair competition law, including the planning and implementation of advertising and PR activities.

Gassauer-Fleissner Rechtsanwälte GmbH is an independent Austrian partnership of business lawyers. We advise multinational company groups, Austrian companies, corporations under public law and private clients.

We offer our clients economically reasonable solutions in an ever more complex legal environment. Our approach combines specialised, interdisciplinary, teamwork-based counselling services with the benefits of personal attention in a transparent structure. However large a transaction may be, we always make sure to provide for stringent communication, accessibility of the partner in charge, and efficient employment of resources.

International transactions require an international network of top-notch correspondent law firms. Over the past few years we have advised our clients in connection with the development of new markets and acted as lead counsel in many transactions e.g. in CEE countries, in close cooperation with many of the relevant country’s leading law firms.

Christian Gassauer-Fleissner is a highly regarded figure in the Austrian IP market, highlighted in particular for his patent litigation expertise. He is the president of the European Patent Lawyers Association (EPLAW).
Chambers Europe, 2014