Attorneys-at-law
13 UPC Representatives · 22 SEP Litigators
Germany
Short self-description
Leading patent law firm with a dynamic, engaged team. Active before the UPC from day one and experienced in German courts. Renowned for international litigation and seamless collaboration with top-tier firms. Skilled in managing complex, high-volume cases with strategic precision.
Main practice areas: Patent litigation for implementation and SEP patents, comprising enforcement proceedings before the UPC and German national courts, as well as validity proceedings before the UPC, EPO opposition and appeal proceedings, and before the German Federal Patent Court.
Industry/technology focus: mechanical engineering; physics and general engineering; electrical engineering; electronics; information and communication technology; computer software; blockchain and web3; automotive; optics, optoelectronics and laser technology.
df-mp.tech is highly experienced in standard-essential patent and litigation in the field of telecommunication, with a strong focus on international cases involving parallel proceedings across multiple jurisdictions.
UPC-related services: Patent enforcement; defense against infringement claims; proactive revocation claims; defense against revocation claims; bring and pursue notice of opposition in EPO; defense in EPO opposition proceedings; unitary patent appeals from EPO; opt-outs and withdrawals.
df-mp.tech has practiced in four CFI divisions.
SEP-related services: Advice related to participation in standards developments; SEP enforcement; defense against SEP infringement claims; bring revocation claims against SEPs (including EPO opposition, PTAB etc.); SEP prosecution and defense against revocation clais targeting SEPs.
Rankings and awards
- IAM Global Leaders 2025;
- IAM Strategy 300 – Global Leaders 2025;
- IAM Patent 1000 – Gold Firm 2025 and Recommended Individuals;
- IAM Strategy 300 – I P Management Consultancy, Legal;
- Chambers Global 2025 – Leading Firm and Top-Ranked Lawyers in Intellectual Property: Patent Attorneys (Contentious);
- IP Stars 2025 – Top-Tier Firm and IP Star Individual Recognitions;
- JUVE Patent Germany 2025 – Litigation: Patent Attorneys Germany;
- The Legal 500 2025 – Top -Tier and Leading Firm.
UPC achievements
Successful infringement defenses (main proceedings)
- Sanofi v. Zentiva (December 12, 2025 – Munich LD):
Double jeopardy takes down Sanofi’s cabazitaxel use patent as UPC’s Munich LD revokes after EPO BoA affirmance – ip fray
Invalidated patents through revocation (counter)claim or EPO opposition
- Sanofi v. Zentiva (December 12, 2025 – Munich LD):
Double jeopardy takes down Sanofi’s cabazitaxel use patent as UPC’s Munich LD revokes after EPO BoA affirmance – ip fray
Obtained provisional measures (preliminary injunctions)
- InterDigital VC Holdings, Inc. v. Amazon.com, Inc. u.a. (September 30, 2025 – Mannheim LD).
- InterDigital VC Holdings, Inc. v. The Walt Disney Company u.a. (May 27, 2025 – Mannheim LD):
InterDigital launches attack on Disney at multiple venues including UPC – Juve - Nokia Technologies Oy v. Shanghai Sunmi Technology Co., Ltd. u.a. (May 12, 2025 – Munich Local Division):
Nokia obtains anti-antisuit injunctions in fresh lawsuits against Chinese payment terminal maker SUNMI in UPC, Munich, Mannheim – ip fray
Settlements
- Nokia Technologies Oy v. Shanghai Sunmi Technology Co., Ltd. u.a. (February 2025 – Mannheim LD; Munich LD):
Nokia obtains anti-antisuit injunctions in fresh lawsuits against Chinese payment terminal maker SUNMI in UPC, Munich, Mannheim – ip fray - Nokia Technologies Oy v. Verifone GmbH u.a. (August 2024 – Mannheim LD; Munich LD):
Two FRAND firsts for the UPC: first SEP settlement (Nokia-Verifone), first FRAND appellate hearing (OPPO-Panasonic) – ip fray
SEP achievements
Won permanent SEP injunctions
- InterDigital v. Disney (February 12, 2026 – Munich I Regional Court):
InterDigital wins third Munich injunction against Disney: court confirms bench ruling over HEVC-related patent – ip fray - Interdigital Technology Corporation v. Lenovo (Germany) GmbH (April 18, 2024 – Munich I Regional Court):
After success in Germany, InterDigital’s FRAND battle with Lenovo shifts to London – Juve - Datang v. Samsung (April 2024 – Munich I Regional Court):
Datang wins against Samsung in 4G SEP infringement dispute – Juve - Nokia Technologies Oy v. Oppo, OnePlus, Vivo (January 2024 – Mannheim Regional Court):
Settlement season continues as Nokia and Oppo end global patent battle – Juve - InterDigital Technology Corporation v. Guangdong OPPO Mobile Telecommunications Corp. Ltd. et al. (December 21, 2023 – Munich I Regional Court): InterDigital prevails against Oppo and OnePlus over SEPs in Munich – Juve
- Nokia Technologies Oy v. Daimler AG (September 29, 2020 – Mannheim Regional Court): First win for Nokia and Arnold Ruess in ongoing battle with Daimler – Juve
Won antisuit/anti-antisuit injunctions
- InterDigital v. Amazon (September 26, 2025 – Munich I Regional Court; September 30, 2025 – Mannheim Local Division):
InterDigital accelerate battle against Amazon in Europe, Brazil and the US – Juve - InterDigital v. The Walt Disney Company u.a. (May 19, 2025 – Munich I Regional Court; May 27, 2025 – Munich Local Division):
InterDigital and Arnold Ruess win injunction against Disney – Juve - Nokia Technologies Oy v. Shanghai Sunmi Technology Co., Ltd. (February 19, 2025 – Munich LD):
Nokia obtains anti-antisuit injunctions in fresh lawsuits against Chinese payment terminal maker SUNMI in UPC, Munich, Mannheim – ip fray - InterDigital Technology Corporation v. Xiaomi Communications Co., Ltd. (February 25, 2021 – Munich I Regional Court):
InterDigital signs licensing agreement with Xiaomi – Juve - Nokia Technologies Oy v. Continental Automotive Systems. Inc. (July 11, 2019 – Munich I Regional Court):
US anti-suit injunction found incompatible with German law for first time – Juve
Litigated FRAND determination claims
Assistance in:
- InterDigital v. Lenovo (March 16, 2023 and June 27, 2024 – England & Wales High Court).
- InterDigital v. Lenovo (England & Wales High Court):
InterDigital-Lenovo lawsuits dropped in favor of binding FRAND arbitration to set royalty rates – ip fray
Won technical infringement rulings over SEPs
- InterDigital v. Lenovo (May 2, 2024 – Munich I Regional Court):
Munich court sets low bond (€1 million for phones, €3 million for tablets and PCs) for InterDigital v. Lenovo SEP injunction – ip fray - Datang v. Samsung (April 12, 2024 – Regional Court Munich):
Datang wins against Samsung in 4G SEP infringement dispute – Juve - Nokia Technologies Oy v. Oppo, OnePlus, Vivo (January 2024 – Mannheim Regional Court)
- InterDigital v. Oppo (December 21, 2023 – Munich I Regional Court):
OPPO’s next settlement: license agreement with InterDigital after almost three years of litigation – ip fray - Nokia Technologies Oy v. Daimler AG (September 29, 2020 – Mannheim Regional Court).
Settlements prior to decisions
- InterDigital v. Lenovo (September 22, 2023 – Munich I Regional Court):
InterDigital-Lenovo lawsuits dropped in favor of binding FRAND arbitration to set royalty rates – ip fray
Other SEP achievements
- InterDigital v. Disney (February 12, 2026 – Munich I Regional Court):
- InterDigital wins third Munich injunction against Disney: court confirms bench ruling over HEVC-related patent – ip fray (perfect three-out-of-three winning streak in this dispute)