FH Brundle (A Private Unlimited Company) v Perry
Decision date: 6 March 2014
Neutral citation: [2014] EWHC 475 (IPEC)
Overall AI summary confidence: high
Short overview
This short overview is intended to summarise the case, issues and outcome so far as they are supported by the judgment.
AI confidence in this short overview: high
This case concerns groundless threats of patent infringement made by Mr Perry to FH Brundle in three letters and whether Brundle was a person aggrieved, plus whether Brundle's supplied Nylofor Beam bracket infringed claim 1 of Mr Perry's patent. The court held the October, November and December 2012 letters amounted to threats and that Brundle was a person aggrieved, so Brundle's threats claim succeeded. On claim construction and a feature-by-feature factual comparison, the Nylofor Beam bracket did not fall within claim 1 (failing multiple specified claim features for both mesh and wooden fence uses), so Mr Perry's counterclaim and Part 20 claim were dismissed.
Ratio decidendi
This summary is intended to identify the ratio decidendi, meaning the legal reasons for deciding and the binding part of the decision.
AI confidence in this ratio decidendi summary: medium
A communication amounts to a threat of infringement proceedings if a reasonable recipient, aware of the relevant circumstances, would understand it as an intention to enforce IP rights by proceedings, even if the threat is conditional or veiled. In construing product claims, features expressed as "adapted to" or "suitable for" are assessed objectively by the skilled person; if achieving the claimed function requires substantive physical modification, the product may not be "suitable for" that function and therefore may fall outside the claim.
Obiter dicta
This summary is intended to identify obiter dicta, meaning observations made by the way that were not necessary to deciding the case and are not binding.
AI confidence in this obiter dicta summary: medium
The judge warned against importing subjective designer intent into the construction of expressions like "adapted to," treating them as equivalent to "suitable for" and noting that whether a feature is negatived by the need for substantive modification is a question of fact and degree.