Unsere Kanzlei wird seit Jahren zu den führenden österreichischen Kanzleien im Immaterialgüter- und Lauterkeitsrecht gezählt:


„Die IP-Boutique gehört mit ihrer ungebrochenen Prozesspräsenz zu den führenden Kanzleien im Marken-, Wettbewerbs- und Patentrecht.“


„Specialist IP firm Wiltschek Plasser Rechtsanwälte, as it has been known since 2018, handles the full spectrum of IP work, from unfair competition law and trade marks to design and copyrights. The team advises clients operating in an array of industry sectors, including manufacturing, healthcare, industrial engineering and financial services. However, particular attention is placed on the life sciences sector. Lothar Wiltschek and David Plasser are the key contacts.“


„Wiltschek is a small niche firm that specialises in contentious IP work. The firm punches above its weight and is widely respected by opponents. One rival says the firm is ‚one of the best in the field‘, with ‚IP guru‘ and name partner Lothar Wiltschek at the helm. He is supported by IP star David Plasser and both ensure clients receive the highest level of advice.“

WTR 1000

„Wiltschek is a heavyweight on the trademark scene; specialising in both IP law and European law, this is the place where high-stakes matters are settled. Lothar Wiltschek and David Plasser are a dynamic duo. 

Lothar is a luminary in the field and the inventor of unfair competition law. As a senior statesman he is very clever and knows the tricks of the trade. Lothar’s decades of experience are difficult to match, and he has a commanding presence when he walks into a room.

David is a remarkable litigator who has perfected his pragmatic approach. His insight into case law is extraordinary, and he is always able to back himself up with profound academic wisdom.

Wiltschek and Plasser never fight for the sake of it but prioritise settling matters out of the courtroom. However, they are ready to take the necessary steps when it comes to an unavoidable IP showdown. Famous Austrian brands seek out the pair for their polished approach to litigation and their stellar filing practice.“


„Noteworthy IP boutique with a strong focus on clients from the life sciences sector, as well as those active in the media and technology fields. Advises on unfair competition and data protection in the trade mark and patent sphere. Further experience in protection of design and personality rights.

Interviewees highlight the firm as a reputable team in patent litigation.

Described by sources as a ‚talented and smart guy‘ David Plasser assists clients with trade mark and patent matters, with further strength in the protection of personality rights and protection of designs.

Lothar Wiltschek is lauded by market commentators for his long-standing position on the market. He advises on employee inventions, copyright matters and unfair competition issues.“

iam Patent 1000

„Wiltschek Rechtsanwälte’s remarkable pool of talent, the direct involvement of its partners and its unique specialism in IP and EU law ensure the firm’s status as a market favourite. With a cutting-edge knowledge of patent law, the outfit has recently advised innovators and generics on the fast-growing world of biosimilars. The strongest and most experienced litigator in the field, senior partner Lothar Wiltschek is a luminary. Highly respected and supremely qualified, he will be the master until he retires. Still very active on the patent market, he’s tough in court and knows all the tricks. Opponents relish an opportunity to take him on, knowing that `litigating against him is fun and never boring and you always learn something“.

‚Excellent litigator‘ David Plasser is a dab hand in contentious work, demonstrating finesse in defending the interests of major pharmaceutical companies.“