Amazon.com, Inc & Ors v Interdigital VC Holdings, Inc & Ors [2025] EWHC 3170 (Pat) (02 December 2025)

Amazon.com, Inc & Ors v Interdigital VC Holdings, Inc & Ors [2025] EWHC 3170 (Pat) (02 December 2025)

The interim anti-anti-suit injunction (AASI) is continued. There remains a real and sufficient risk, based on InterDigital's prior conduct and equivocation, that InterDigital may seek anti-suit relief in foreign courts to restrain Amazon's pursuit of final RAND relief in the UK. The interests of justice require the continuation of the AASI to protect the jurisdiction of the English court and prevent vexatious or oppressive conduct. The order does not offend comity as it is directed at the parties, not foreign courts, and does not prevent substantive patent infringement proceedings abroad. Clarifications to the order may be made to avoid ambiguity but do not alter its substance.

Citation
[2025] EWHC 3170 (Pat)
Parties
Claimant: Amazon.com, Inc.; Claimant: Amazon Digital UK Limited; Claimant: Amazon Europe Core SARL; Claimant: Amazon EU SARL; Claimant: Amazon Technologies, Inc.; Defendant: InterDigital VC Holdings, Inc.; Defendant: InterDigital, Inc.; Defendant: InterDigital Madison Patent Holdings SAS; Defendant: InterDigital Patent Holdings, Inc.; Defendant: InterDigital CE Patent Holdings SAS; Defendant: Thomson Licensing SAS; Defendant: Vantiva SA
Jurisdiction
England and Wales
Judgment Date
02 December 2025
Procedural Posture
Patents/intellectual Property / Interim Application to Set Aside or Vary Anti Anti Suit Injunction (aasi)
Outcome
Application to set aside the AASI refused; AASI continued with possible clarifications.
Legal Topics
Anti Suit Injunctions, Anti Anti Suit Injunctions, Rand/frand Licensing, Jurisdiction, Comity, Quia Timet Relief
Intellectual Property Patents Civil Procedure Anti Suit Injunctions Anti Anti Suit Injunctions Rand/frand Licensing Jurisdiction Comity +1 more

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Parties

Amazon.com, Inc.

Claimant

Amazon Digital UK Limited

Claimant

Amazon Europe Core SARL

Claimant

Amazon EU SARL

Claimant

Amazon Technologies, Inc.

Claimant

InterDigital VC Holdings, Inc.

Defendant

InterDigital, Inc.

Defendant

InterDigital Madison Patent Holdings SAS

Defendant

InterDigital Patent Holdings, Inc.

Defendant

InterDigital CE Patent Holdings SAS

Defendant

Thomson Licensing SAS

Defendant

Vantiva SA

Defendant

Procedural Posture

Patents/intellectual Property / Interim Application to Set Aside or Vary Anti Anti Suit Injunction (aasi)

Legal Issues

  1. 1 Whether to set aside or continue the interim anti-anti-suit injunction (AASI) granted to restrain InterDigital from seeking anti-suit relief against Amazon's pursuit of final RAND relief in the UK.
  2. 2 Whether there is a sufficient threat or intention by InterDigital to seek anti-suit injunctions in foreign courts to justify continuation of the AASI.
  3. 3 Whether the AASI offends principles of comity or requires clarification.

Ratio Decidendi

The interim anti-anti-suit injunction (AASI) is continued. There remains a real and sufficient risk, based on InterDigital's prior conduct and equivocation, that InterDigital may seek anti-suit relief in foreign courts to restrain Amazon's pursuit of final RAND relief in the UK. The interests of justice require the continuation of the AASI to protect the jurisdiction of the English court and prevent vexatious or oppressive conduct. The order does not offend comity as it is directed at the parties, not foreign courts, and does not prevent substantive patent infringement proceedings abroad. Clarifications to the order may be made to avoid ambiguity but do not alter its substance.

Court Disposition

Application to set aside the AASI refused; AASI continued with possible clarifications.

Orders

  • The interim anti-anti-suit injunction (AASI) is continued against InterDigital, restraining them from seeking anti-suit relief to prevent Amazon's pursuit of final RAND relief in the UK.
  • Clarifications to the AASI order may be made to avoid ambiguity, provided they do not alter the material effect of the relief.