We are a law firm specializing in patent and intellectual property law.
Our five founding partners and their well-coordinated team of experienced lawyers have been working together successfully for many years.
We combine legal excellence with personal advice – your goals are our focus. Our advice is based on our experience and tailored to our clients' strategic and economic objectives.
Pentarc burst onto the European patent scene as one of the most significant new arrivals, making an impressive debut at the UPC.
(JUVE Patent UPC Ranking 2026)
“Christian Lederer is an extraordinary attorney who delivers excellent results for us.”
(Client, Chambers Germany 2025)
“Fluent Mandarin speaker Thomas Pattloch is […] primarily aimed at supporting European and American clientele with IP issues in China. He is particularly accomplished in overseeing complex, IP-rich transactions, from licensing and tech transfer agreements to R&D collaborations.”
“Jan Phillip Rektorschek, who stands out as a knowledgeable and tactical practitioner who always comes through for his following, both in litigious scenarios and when drafting and negotiating licensing and R&D agreements.”
(IAM Patent 1000 Germany 2024)
“Christian Lederer is an accomplished manager and coordinator of international, multi-jurisdiction patent litigation. He has particular expertise representing Japanese and Korean patrons.”
(IAM Patent 1000 Germany 2023)
"Pentarc burst onto the European patent scene as one of the most siginificant new arrivals, making an impressive debut at the UPC."
(JUVE Patent UPC Ranking 2026)
Dieter Kamlah “genuinely cares about the case and is a tireless worker, always delivers what we need”
(Client, Juve 2024/2025)
Thomas Pattloch “is an accomplished adviser on disputes in the region as well as licensing, technology and data transfer questions”
(World Trademark Review WTR 1000 Germany)
“Anja Lunze has extensive experience representing Japanese clients in German patent litigation. She drafts briefs with great care, and her deep knowledge of the relevant laws and legal theories adds great value. She is particularly strong in the pharmaceutical field, including chemicals and medical devices. She is always calm and sees things from a very objective point of view. This allows her and her teams to take a well-balanced approach. An additional advantage she has is her deep understanding of the Japanese culture, drawn from her time spent living in the country.”
(IAM Patent 1000 Germany 2023 - Leading individual)
Jan Phillip Rektorschek – Ranked as leading IP strategist in the following areas: Aerospace/automotive, Biotech, Chemicals, Electronics, Energy/fuel, Engineering/construction, Legal, Materials, Medical devices, Pharmaceuticals/life sciences, Semiconductors, Software, Telecommunications in IAM Strategy 300 2024
Pentarc burst onto the European patent scene as one of the most significant new arrivals, making an impressive debut at the UPC.
(JUVE Patent UPC Ranking 2026)
“Christian Lederer is an extraordinary attorney who delivers excellent results for us.”
(Client, Chambers Germany 2025)
Patent & IP litigations
We represent large and medium-sized clients in enforcing their patents before all German courts, the Unified Patent Court (UPC), and, together with partners, in all countries worldwide.
IP Contracts & Licenses
As experienced litigation attorneys, we understand the value of intellectual property and are familiar with all the pitfalls in contract drafting, as these inevitably lead to disputes. With this experience, we draft and negotiate all types of cooperation agreements for you.
About us
We advise on all patent law disputes concerning the enforcement of rights before all German courts, the German or European Patent Office, and the Unified Patent Court (UPC). Our attorneys have many years of experience in handling and coordinating international disputes, including patent litigation in the US and the PRC, which we coordinate and handle in cooperation with our partners.
As an independent law firm, we only work with the best.
You already know that something needs to be done – we will make sure that you quickly get in touch with the right contact person. A quick email or phone call is all it takes.