Contact

When you are in need of excellence

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.
Unteransicht einer blauen Brückenkonstruktion mit parallelen Bögen und diagonalen Streben.
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

“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.”
(IAM Patent Germany 2023)
Dieter Kamlah – Frequently recommended lawyer
(JUVE Patent’s UPC litigation Ranking 2025)
Anja Lunze – “truly good” (JUVE Patent 2024/2025) and „outstanding technical understanding, dynamic advice“
(JUVE Patent 2021)
“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)
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

“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.
more

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.
more
A solid brown rectangle on the top half and a solid white rectangle on the bottom half.

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.

PENTARC – When you are in need of excellence

Bronze statue of Lady Justice holding scales, blindfolded, against a light wood-grain background.

Industry Know-how

more
An industrial bottling machine with many clear plastic bottles moving along a conveyor belt system.

Updates

more
Two Shure microphones with metallic grilles on stands, with one in focus against a dark background.
Industry Expertise

AI & computer-implemented inventions

more

Electronics, Tech & Telecommunications

more

Chemistry & Material Science

more
Chemistry & Material Science

Life Sciences & Healthcare

more

Automotive

more
Life Sciences & Healthcare
Pentarc Rechtsanwälte logo with "PENTARC" in large letters and "RECHTSANWÄLTE" below, inside a broken circle.

Meet our team

Smiling man in a blue suit and white shirt with a white pocket square, standing against a gray background.

Dr. Christian Lederer

Partner
Patent litigator for more than 25 years, UPC Representative
Extensive experience in conducting multinational patent litigation
Special expertise in advising Asian clients
Read moreE-Mail
A bald man in a navy suit, white shirt, and glasses smiles at the camera against a gray background.

Dr. Thomas Pattloch

LL.M.Eur., Partner
Attorney at law since 2002 – the leading international IP expert for Greater China.
Fluent in Mandarin.
Advises on patent, trademark and copyright law, and provides comprehensive advice on international technology and data transfer.
Read moreE-Mail
A smiling man with short brown hair and glasses wears a blue suit jacket and white shirt.

Dr. Dieter Kamlah

Partner
Patent litigator for more than 20 years, UPC representative
Impressive track record in the UPC since its entry into force
All-rounder for complex international patent litigation be it telecommunications, IT or life sciences
Read moreE-Mail
A woman with long brown hair, wearing a white shirt and a dark blue blazer, stands against a gray background.

Dr. Anja Lunze

LL.M., Partner
Patent Litigator since 2006, UPC Representative
Expert for life sciences, healthcare and medtech
Negotiates licensing, research, and development collaborations
Read moreE-Mail
A man in a dark blue suit jacket and white collared shirt looks directly at the viewer.

Dr. Jan Phillip Rektorschek

Partner
Patent litigator since 2012, UPC representative
Expert for IT/electronics/IOT, pharmaceuticals/life sciences, SEP/FRAND
Active before all German courts and the Unified Patent Court (UPC), where he is conducting many proceedings.
Read moreE-Mail
A woman with blonde hair in a dark blue sleeveless top and gold necklace looks directly forward.

Verena Bertram

Salary Partner
Patent litigator since 2010, UPC representative
Expert for life sciences & medtech
Many years of experience with multinational patent disputes
Read moreE-Mail
A smiling bald man with glasses and a dark suit looks slightly right against a light gray background.

Julius Zacharias

Salary Partner
Patent Litigator since 2016
UPC Representative
Expert for Pharmaceuticals & Biotech
Read moreE-Mail
A smiling man with short brown hair, wearing a dark suit jacket and white collared shirt, looks directly ahead.

Dr. Michael Schächinger

Salary Partner
Patent Litigator since 2016, UPC Representative
Many years of experience in multinational IP litigation
Specializes in telecommunications, Industry 4.0, and IoT
Read moreE-Mail
A man in a dark suit jacket, white shirt, and glasses smiles slightly.

Tobias Baus

LL.M., Dipl.-Ing., Salary Partner
Patent Litigator since 2019, UPC Representative
Graduate Engineer
Specializes in engineering, IT, and standard essential patents (SEPs)
Read moreE-Mail
A man with short blonde hair and a dark suit jacket over a white shirt looks directly forward.

Dr. Aurel-Damian Roscher

LL.M., Salary Partner
Patent Litigator since 2020, UPC Representative
Expert for life sciences and medtech
Advises on IP strategies and negotiates license and cooperation agreements
Read moreE-Mail
A young woman with shoulder-length brown hair and glasses smiles slightly, wearing a dark blue suit jacket and white shirt.

Julia Fischer

Senior Associate
Patent Litigator since 2021, UPC Representative
Experienced in the pharmaceutical and telecommunications industries
Drafts IP license agreements
Read moreE-Mail
Young woman with long auburn hair, wearing a dark blue blazer and white shirt, smiling slightly.

Verena Brusius

Associate
Patent Litigator since 2025, UPC Representative
Read moreE-Mail
An orange staircase on an orange background with a glowing lightbulb at the top.

Kim-Lara Marozzi

Assistentin
Backbone of our law firm
Knows all the ins and outs of beA and the UPC CMS

Your job with us


We welcome applications from anyone who shares our enthusiasm for intellectual property, wants to work in a team and has outstanding legal expertise.
Apply Now
How to reach us
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.
Phone number
+49 (0)160 96996841
E-Mail
info@pentarc-legal.com
Contact

Personal. Confidential. On‒site or digital.

Whether you would like to meet us in person at our office or have a video conversation, we will accommodate your preferences.

Arrive without detours

Our office is centrally located and easily accessible – by car or public transport. Parking is available.
Parking
Black and white photo of a tram on a city street, with a subway entrance and "U S Tram" signs.
Attorneys
Legal information
Contact
PENTARC Rechtsanwälte PartG mbB
How to find us
COMING SOON - Herbst 2025
© 2025 | PENTARC Rechtsanwälte PartG mbB. All rights reserved.