Interdigital Technology Corporation & Ors v Lenovo Group Ltd & Ors [2023] EWCA Civ 34 (19 January 2023)

Interdigital Technology Corporation & Ors v Lenovo Group Ltd & Ors [2023] EWCA Civ 34 (19 January 2023)

The Court of Appeal held that the judge was correct to reject Lenovo's obviousness challenge. The skilled person would not have been motivated to reduce the message to a single bit or to use OOK in the context of cellular networks at the priority date. The prejudice principle did not apply, as there was no technical prejudice regarding the claim features that required dispelling. The judge's findings were supported by the evidence and contained no error of law or principle.

Citation
[2023] EWCA Civ 34
Parties
Claimants/respondents: InterDigital Technology Corporation & Ors; Defendants/appellants: Lenovo Group Ltd & Ors
Jurisdiction
England and Wales
Judgment Date
19 January 2023
Procedural Posture
Patent Infringement and Validity Appeal / Appeal From High Court (patents Court) to Court of Appeal
Outcome
Appeal dismissed
Legal Topics
Patent Validity, Obviousness, Standard Essential Patents (seps), FRAND Licensing, Telecommunications Standards
Intellectual Property Patents Patent Validity Obviousness Standard Essential Patents (seps) FRAND Licensing Telecommunications Standards

Case Brief

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Parties

InterDigital Technology Corporation & Ors

Claimants/respondents

Lenovo Group Ltd & Ors

Defendants/appellants

Procedural Posture

Patent Infringement and Validity Appeal / Appeal From High Court (patents Court) to Court of Appeal

Legal Issues

  1. 1 Whether the patent EP (UK) 2 485 558 is invalid for obviousness over the Samsung prior art document
  2. 2 Whether the judge erred in his approach to the obviousness analysis, including the application of the prejudice principle and the assessment of common general knowledge

Ratio Decidendi

The Court of Appeal held that the judge was correct to reject Lenovo's obviousness challenge. The skilled person would not have been motivated to reduce the message to a single bit or to use OOK in the context of cellular networks at the priority date. The prejudice principle did not apply, as there was no technical prejudice regarding the claim features that required dispelling. The judge's findings were supported by the evidence and contained no error of law or principle.

Court Disposition

Appeal dismissed

Orders

  • The appeal is dismissed.