German Federal Court of Justice Reinforces Strict Willing Licensee Standard in SEP Litigation

Why It Matters

The decision raises the bar for implementers to avoid injunctions, reinforcing SEP owners’ leverage and shaping FRAND practice across Europe.

Key Takeaways

• FCJ rejects implementer’s FRAND defense, labeling them unwilling licensee
• Prompt counter‑offers and adequate security now mandatory in negotiations
• No strict sequential rule; parties must negotiate in good faith
• CJEU referral denied, national courts keep interpretive authority
• Decision favors SEP owners, tightening implementer obligations under FRAND

Pulse Analysis

The landscape of standard‑essential patent (SEP) licensing in Europe has long been shaped by the interplay between competition law and patent rights. Courts interpret the fair, reasonable, and non‑discriminatory (FRAND) commitment as a corridor that balances the SEP holder’s monopoly with the implementer’s need for affordable access. Recent decisions, notably the European Court of Justice’s Huawei v ZTE ruling, have left practitioners uncertain about the procedural steps required to mount a successful FRAND defense. Against this backdrop, the German Federal Court of Justice’s January 2026 judgment provides a decisive clarification.

The FCJ’s ruling in VoiceAge v. HMD crystallizes a ‘willing licensee’ test that obliges implementers to respond swiftly to licensing offers, submit counter‑offers even when the initial proposal appears non‑FRAND, and post adequate security if negotiations stall. The court rejected the notion of a strictly sequential negotiation process, insisting that both parties must negotiate in good faith and explore alternative licensing terms. By labeling delayed or insufficient responses as evidence of unwillingness, the judgment makes injunctions a realistic threat for any implementer that falls short of these procedural benchmarks.

Practically, the decision signals a shift toward stronger SEP‑owner leverage across the EU. Companies will need to redesign internal licensing workflows, ensuring rapid legal review and pre‑emptive security arrangements to avoid injunctive exposure. While the FCJ declined to refer the case to the CJEU, the lack of a uniform EU‑wide standard may prompt the Unified Patent Court to address remaining ambiguities, especially concerning the quantum of security required. Stakeholders should monitor forthcoming UPC rulings, as they will likely cement the procedural rigor introduced by the German court and influence cross‑border SEP licensing strategies.