Synthon B.V v Smithkline Beecham Plc [2003] EWCA Civ 861 (25 June 2003)

Synthon B.V v Smithkline Beecham Plc [2003] EWCA Civ 861 (25 June 2003)

Synthon's application did not contain clear and unmistakable directions enabling the skilled person to make the claimed crystalline PMS. The only specific example failed to produce the claimed product, and the general teaching was insufficient. Therefore, the SB patent was not anticipated and remained valid.

Citation
[2003] EWCA Civ 861
Parties
Claimant/respondent: Synthon B.V.; Defendant/appellant: SmithKline Beecham PLC
Jurisdiction
England and Wales
Judgment Date
25 June 2003
Procedural Posture
Patent Revocation Appeal / Court of Appeal (civil Division) Judgment
Outcome
Appeal allowed; order for revocation set aside; claim for revocation dismissed.
Legal Topics
Novelty, Anticipation, Double Patenting, Enabling Disclosure
Intellectual Property Patent Law Novelty Anticipation Double Patenting Enabling Disclosure

Case Brief

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Parties

Synthon B.V.

Claimant/respondent

SmithKline Beecham PLC

Defendant/appellant

Procedural Posture

Patent Revocation Appeal / Court of Appeal (civil Division) Judgment

Legal Issues

  1. 1 Whether Synthon's patent application anticipated SmithKline Beecham's patent under section 2(3) of the Patents Act 1977
  2. 2 Whether the disclosure in Synthon's application enabled the skilled person to make the claimed invention
  3. 3 Whether the general teaching in Synthon's application constituted clear and unmistakable directions to make the claimed crystalline PMS

Ratio Decidendi

Synthon's application did not contain clear and unmistakable directions enabling the skilled person to make the claimed crystalline PMS. The only specific example failed to produce the claimed product, and the general teaching was insufficient. Therefore, the SB patent was not anticipated and remained valid.

Court Disposition

Appeal allowed; order for revocation set aside; claim for revocation dismissed.

Orders

  • Set aside the order of the judge revoking the patent
  • Dismiss the claim for revocation