Interdigital Technology Corporation v Lenovo Group Limited

Interdigital Technology Corporation v Lenovo Group Limited

The patent is anticipated by Filiatrault because, in at least some scenarios, the means disclosed in Filiatrault produce the result required by claim 1, even if by different means. The patent's construction does not exclude such scenarios. The patent is therefore invalid.

Parties
Claimant: InterDigital Technology Corporation; Claimant: InterDigital Patent Holdings, Inc.; Claimant: InterDigital, Inc.; Claimant: InterDigital Holdings, Inc.; Defendant: Lenovo Group Limited; Defendant: Lenovo (United States) Inc.; Defendant: Lenovo Technology (United Kingdom) Limited; Defendant: Motorola Mobility LLC; Defendant: Motorola Mobility UK Limited
Jurisdiction
England and Wales
Judgment Date
06 January 2022
Procedural Posture
Patent Infringement and Validity / Judgment After Trial (trial B)
Outcome
Patent held invalid for anticipation; not infringed; not essential to the standard.
Legal Topics
Patent Validity, Patent Infringement, Anticipation, Obviousness, Standard Essential Patents (seps), Telecommunications Standards
Intellectual Property Patents Patent Validity Patent Infringement Anticipation Obviousness Standard Essential Patents (seps) Telecommunications Standards

Case Brief

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Parties

InterDigital Technology Corporation

Claimant

InterDigital Patent Holdings, Inc.

Claimant

InterDigital, Inc.

Claimant

InterDigital Holdings, Inc.

Claimant

Lenovo Group Limited

Defendant

Lenovo (United States) Inc.

Defendant

Lenovo Technology (United Kingdom) Limited

Defendant

Motorola Mobility LLC

Defendant

Motorola Mobility UK Limited

Defendant

Procedural Posture

Patent Infringement and Validity / Judgment After Trial (trial B)

Legal Issues

  1. 1 Whether EP(UK) 3,355,537 B1 is anticipated by prior art (Filiatrault)
  2. 2 Whether EP(UK) 3,355,537 B1 is obvious over prior art
  3. 3 Proper construction of claim 1 of the patent (including 'MAC-d flow data', 'smaller than', 'means for')

Ratio Decidendi

The patent is anticipated by Filiatrault because, in at least some scenarios, the means disclosed in Filiatrault produce the result required by claim 1, even if by different means. The patent's construction does not exclude such scenarios. The patent is therefore invalid.

Court Disposition

Patent held invalid for anticipation; not infringed; not essential to the standard.

Orders

  • EP(UK) 3,355,537 B1 declared invalid.
  • No finding of infringement against Lenovo.