Source: All England Reporter
Publisher Citation: [2007] All ER (D) 151 (Jan)
Neutral Citation: [2007] EWCA Civ 15
Court: Court of Appeal, Civil Division
Judge:

Mummery, Tuckey and Jacob LJJ

Representation John Mellor QC and James Abrahams (instructed by Simmons & Simmons) for the claimant.
  Christopher Floyd QC and Ian Purvis QC (instructed by Bristows) for the defendant.
Judgment Dates: 23 January 2007

Catchwords

Patent - Infringement - Validity of patent - Novelty - Obviousness - Construction of claim - Defendant to infringement proceedings claiming patent invalid on grounds of obviousness and novelty - Whether judge misconstruing claim in patent - Whether judge erring in finding patent invalid due to obviousness.

The Case

Where the claimant had brought infringement proceedings against the defendant in respect of its patent relating to methods for cutting or trimming printed products, the judge had misconstrued the first claim of its patent, which on its true construction had been infringed by the defendant's process. The court should always guard against any post facto analysis in considering whether the claim was obvious, and in the instant case the judge had been wrong to find the patent was invalid due to obviousness, since he had failed to guard against hindsight.

Practice Areas

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