Vringo Infrastructure Inc v ZTE (UK) Ltd
The patent is valid as amended because the prior art documents disclose network transparency but not protocol transparency as claimed; protocol transparency in the context of SRNS relocation is not obvious from GSM external handover or protocol layer stack, and ZTE's UMTS and LTE products infringe by implementing the claimed method as defined in the relevant standards.
- Parties
- Claimant: Vringo Infrastructure Inc.; Defendant: ZTE (UK) Limited
- Jurisdiction
- England and Wales
- Judgment Date
- 28 November 2014
- Procedural Posture
- Patent Action / Judgment After Trial
- Outcome
- Patent is valid as amended and infringed by ZTE.
- Legal Topics
- Patent Validity, Patent Infringement, Obviousness, Novelty, Telecommunications Standards
Case Brief
Summary, issues, holding and outcome
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Parties
Vringo Infrastructure Inc.
Claimant
ZTE (UK) Limited
Defendant
Procedural Posture
Patent Action / Judgment After Trial
Legal Issues
- 1 Whether EP (UK) 1 212 919 is valid as amended
- 2 Whether ZTE infringes the patent
- 3 Whether the patent lacks novelty or is obvious over prior art
Ratio Decidendi
The patent is valid as amended because the prior art documents disclose network transparency but not protocol transparency as claimed; protocol transparency in the context of SRNS relocation is not obvious from GSM external handover or protocol layer stack, and ZTE's UMTS and LTE products infringe by implementing the claimed method as defined in the relevant standards.
Court Disposition
Patent is valid as amended and infringed by ZTE.
Orders
- EP (UK) 1 212 919 is valid as amended.
- ZTE's UMTS and LTE products infringe the patent.
Full Case Text
Judgment text and source record
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