ABP Anwälte Burger & Partner Rechtsanwalt GmbH > Windischgarsten, Austria > Firm Profile

ABP Anwälte Burger & Partner Rechtsanwalt GmbH

Austria > Intellectual property Tier 4

IP boutique ABP Anwälte Burger & Partner Rechtsanwalt GmbH works closely with the firm’s Munich and Zurich offices to provide patent and trade mark prosecution and litigation services across the DACH region. The practice’s leadership group consists of Hannes Burger, who founded the firm, and is also a qualified patent attorney; soft IP specialist Clemens OfnerKatarina Casals Ide, who focuses on IP contracting and licensing; criminal patent and trade mark expert Esther Humpl-Wagner; and Eike Schaper, who leads the firm's litigation practice.

Practice head(s):

Hannes Burger; Clemens Ofner; Katarina Casals Ide; Esther Humpl-Wagner; Eike Schaper


‘A point of reference for competencies and quality.’

‘Beside excellent legal skills in the relevant field of IP law and a remarkable track record in respective disputes and litigations, ABP has in depth knowledge about our market, technology and our history.’

‘Hannes Burger has in depth legal and technical skills in technology that are relevant for our business, provides tailored legal and technical advice with the aim to generate value add for us as customer. Clemens Ofner also has in depth legal skills and practice in trade mark law.’

‘Burger & Partner offers a broad spectrum of services in the field of intellectual property protection. Everyone at this practice is very skilled in their fields and they all have a deep understanding of the technical field they are dealing with.’

‘Katarina Casals Ide is professional, competent, demonstrates client-oriented thinking when drafting contracts, very flexible in terms of time and meets agreed deadlines.’

‘Fast acting, whatever-it-takes attitude, deep knowledge in German unfair competition law, long-standing collaboration with deep knowledge of our markets and applications, very un-bureaucratic and easy to work with.’

‘Eike Schaper has deep knowledge of German unfair competition law in practice and based on many successful cases, as well as in German IP cases. He guides us through complex cases, always mentioning consequences and costs of scenarios and next steps.’

‘They are unique in the way they collaborate with their clients. They always try to find the best solution for us, but at the same time never forget to show all available options.’

Key clients

HUECK Rheinische GmbH


Rosenbauer International GmbH

Coveris Management GmbH

Greiner Bio-One International GmbH


Atomic Austria GmbH


Anwälte Burger und Partner (ABP) is a full-service IP boutique and law firm which offers the entire spectrum of legal services surrounding the protection of intellectual property around the globe.

ABP has a large, synchronized and experienced team of attorneys-at-law, lawyers, technical engineers, researchers and paralegals (more than 50 experts including our cooperation partners and employees at satellite offices!) and operates internationally. This is why ABP can help its clients from the first idea to the worldwide enforcements of rights.

According to clients’ feedback, ABP’s experts “have excellent professional and social skills” and provide “the perfect combination of legal & technical know-how, precise knowledge about products, patents & technology used”. Dr. Hannes Burger and Dr. Clemens Ofner (lead partners of ABP) are highly appreciated for their profound experience in patent and trademark matters.

ABP has offices in Austria (Windischgarsten [headquarters] and Vienna), Germany (Munich) and Switzerland (Zurich), which is a unique constellation (no other IP law firm in Austria can demonstrate such structure!) and enables ABP to interact more directly, personally and faster.

Department Name Email Telephone
Intellectual property - Managing Partner - Head of Patents Dr. Hannes Burger kanzlei@abp-ip.at +43756220531
Intellectual property - Partner - Head of Trademarks Dr. Clemens Ofner kanzlei@abp-ip.at +43756220531
Intellectual property - Partner - Head of Contract matters Dr. Katarina Casals Ide kanzlei@abp-ip.at +43756220531
Intellectual property - Partner - Head of Litigation Dr. Eike Schaper kanzlei@abp-ip.de +4989724083940
Intellectual property - permanent cooperation partner Mag. Sabine Mahringer kanzlei@abp-ip.at +43756220531
Photo Name Position Profile
Hannes Burger photo Dr Hannes Burger Managing Partner, Attorney at law, European Patent Attorney
Katarina Casals Ide photo Dr Katarina Casals Ide Partner, Attorney at law
Sabine Mahringer photo Mag Sabine Mahringer Cooperation Partner, Attorney at law
Clemens Ofner photo Dr Clemens Ofner Partner, Attorney at law
Attorneys-at-Law : 6
Austrian Patent Attorneys in cooperation : 5
European Patent Attorneys in cooperation : 2
German Patent Attorney : 1
Swiss Patent Attorney : 1
European Patent Attorney : 3
Lawyer : 2
Trainee Lawyer : 1
Technical Engineers | IP Consultant : 8
Paralegals : 31
Association of European Trade Mark Owners (MARQUES)
Österreichische Vereinigung für Gewerblichen Rechtsschutz und Urheberrecht (ÖV)
Other offices : Vienna
Other offices : Munich
Other offices : Zurich