InterDigital Technology Corporation & Ors v Lenovo Group Ltd & Ors
The patent is not invalid for obviousness over Samsung prior art because the steps of reducing the message to 1 bit and using OOK were not obvious to the skilled person, and the prejudice principle did not apply. The judge's findings were supported by evidence and contained no error of principle.
- Parties
- Claimant/respondent: InterDigital Technology Corporation & Ors; Defendant/appellant: Lenovo Group Ltd & Ors
- Jurisdiction
- England and Wales
- Judgment Date
- 19 January 2023
- Procedural Posture
- Patent Infringement and Validity Appeal / Court of Appeal Judgment
- Outcome
- Appeal dismissed
- Legal Topics
- Patent Validity, Obviousness, Standard Essential Patents, Telecommunications, FRAND Licensing
Case Brief
Summary, issues, holding and outcome
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Parties
InterDigital Technology Corporation & Ors
Claimant/respondent
Lenovo Group Ltd & Ors
Defendant/appellant
Procedural Posture
Patent Infringement and Validity Appeal / Court of Appeal Judgment
Legal Issues
- 1 Whether patent EP (UK) 2 485 558 is invalid for obviousness over Samsung prior art
- 2 Whether the patent specification must state advantages over prior art
- 3 Application of the prejudice principle in obviousness analysis
Ratio Decidendi
The patent is not invalid for obviousness over Samsung prior art because the steps of reducing the message to 1 bit and using OOK were not obvious to the skilled person, and the prejudice principle did not apply. The judge's findings were supported by evidence and contained no error of principle.
Court Disposition
Appeal dismissed
Orders
- Patent EP (UK) 2 485 558 remains valid
- No need to consider respondent’s notice
Full Case Text
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