Source: All England Reporter
Publisher Citation: [2002] All ER (D) 411 (Oct)
Court: Chancery Division
Judge:

Jacob J

Representation David Kitchin QC and Daniel Alexander (instructed by Bird & Bird) for the claimant.
  Antony Watson QC and Richard Meade (instructed by Blair & Co) for the defendant.
Judgment Dates: 28 October 2002

Catchwords

Patents - Infringement - Estoppel - American doctrine of 'prosecution history estoppel'.

The Case

Reliance by the claimant upon the doctrine of equivalents was precluded by the US doctrine of patent law 'prosecution history (colloquially file wrapper) estoppel'.

Practice Areas

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