Battlekart Europe SA v Chaos Karts 1 Limited & Ors

Battlekart Europe SA v Chaos Karts 1 Limited & Ors

Claim 11 of the patent lacks inventive step because the skilled team would have used BlackTrax or equivalent tracking systems, which were part of the common general knowledge, to implement the claimed system. The patent is also invalid for added matter as it claims at least two electromagnetic radiation sources, only one of which is infrared, which was not disclosed in the original application.

Parties
Claimant: Battlekart Europe SA; Defendant: Chaos Karts 1 Limited; Defendant: The Ents Inc Limited; Defendant: Little Lion Entertainment Limited; Defendant: Thomas Maguire
Jurisdiction
England and Wales
Judgment Date
31 July 2025
Procedural Posture
Patent Infringement and Validity / Final Judgment
Outcome
Patent declared invalid for lack of inventive step and added matter; counterclaim succeeds.
Legal Topics
Inventive Step, Added Matter, Common General Knowledge, Prior Art, Patent Validity, Patent Infringement
Intellectual Property Patent Law Inventive Step Added Matter Common General Knowledge Prior Art Patent Validity Patent Infringement

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Parties

Battlekart Europe SA

Claimant

Chaos Karts 1 Limited

Defendant

The Ents Inc Limited

Defendant

Little Lion Entertainment Limited

Defendant

Thomas Maguire

Defendant

Procedural Posture

Patent Infringement and Validity / Final Judgment

Legal Issues

  1. 1 Whether claim 11 of European Patent 3 304 522 B8 is valid for inventive step
  2. 2 Whether claim 11 contains added matter
  3. 3 Whether the patent discloses or renders plausible any technical contribution to the art

Ratio Decidendi

Claim 11 of the patent lacks inventive step because the skilled team would have used BlackTrax or equivalent tracking systems, which were part of the common general knowledge, to implement the claimed system. The patent is also invalid for added matter as it claims at least two electromagnetic radiation sources, only one of which is infrared, which was not disclosed in the original application.

Court Disposition

Patent declared invalid for lack of inventive step and added matter; counterclaim succeeds.

Orders

  • Patent declared invalid.
  • Claim dismissed.