European Central Bank v Document Security Systems Incorporated

European Central Bank v Document Security Systems Incorporated

The Court held that the features of claim 1 relating to overlaying a mismatching grid on an image were not clearly and unambiguously disclosed, either expressly or implicitly, in the application as filed. The application taught incorporating lines, dots, and swirls into the image itself, not overlaying a separate grid. The skilled person would not derive the claimed features without adding matter. Therefore, the patent as granted contained added matter and was invalid.

Parties
Claimant/respondent: European Central Bank; Defendant/appellant: Document Security Systems Incorporated
Jurisdiction
England and Wales
Judgment Date
19 March 2008
Procedural Posture
Civil Appeal (patents) / Appeal From High Court (patents Court) to Court of Appeal
Outcome
Appeal dismissed; patent remains revoked for added matter.
Legal Topics
Added Matter, Patent Revocation, Implicit Disclosure, Moiré Effect, Security Printing
Intellectual Property Patents Added Matter Patent Revocation Implicit Disclosure Moiré Effect Security Printing

Case Brief

Summary, issues, holding and outcome

More case intelligence is available

Unlock the full research layer for this judgment.

Full judgment text Downloadable case file Legal principles 3 Authorities cited 8 Party arguments 2
Sign in to unlock

Parties

European Central Bank

Claimant/respondent

Document Security Systems Incorporated

Defendant/appellant

Procedural Posture

Civil Appeal (patents) / Appeal From High Court (patents Court) to Court of Appeal

Legal Issues

  1. 1 Whether the granted patent contained added matter beyond the application as filed under Art. 123(2) EPC / s.72(1)(d) Patents Act 1977
  2. 2 Whether the features in claim 1 (specifically overlaying a mismatching grid) were implicitly disclosed in the application as filed

Ratio Decidendi

The Court held that the features of claim 1 relating to overlaying a mismatching grid on an image were not clearly and unambiguously disclosed, either expressly or implicitly, in the application as filed. The application taught incorporating lines, dots, and swirls into the image itself, not overlaying a separate grid. The skilled person would not derive the claimed features without adding matter. Therefore, the patent as granted contained added matter and was invalid.

Court Disposition

Appeal dismissed; patent remains revoked for added matter.

Orders

  • Patent revoked for added matter under s.72(1)(d) Patents Act 1977 / Art. 123(2) EPC.
  • No order as to costs specified in the judgment.