Numatic International Ltd v Qualtex UK Ltd

In a quia timet passing off claim, the claimant must establish goodwill, a misrepresentation likely to deceive, and likely damage. The court assesses the threatened product as it would appear in the real market, using its own judgment together with the evidence. Product shape and get-up can acquire a secondary meaning, but resemblance alone is insufficient unless it denotes a particular source. Removing some indicia, such as a name or facial graphic, will not necessarily prevent passing off if the remaining appearance conveys the same source message. Different branding may also fail to distinguish a product where the competing brand is unknown, descriptive, or absent at the point of sale.

Numatic brought a passing off action against Qualtex concerning a proposed replica vacuum cleaner resembling Numatic’s Henry and NRV 200 cleaners. The prototype displayed at a trade exhibition retained the distinctive cylindrical form and shiny black bowler-hat lid, but omitted the Henry name and smiling face. Qualtex later developed a materially different machine, which Numatic did not challenge.

The issues were what Qualtex threatened to market when proceedings began, whether that threat continued after service of the defence, and whether the threatened conduct amounted to passing off.

1. The claim succeeded. Qualtex had threatened, at the commencement of proceedings, to market a machine substantially resembling the prototype exhibited at the Cleaning Show. The later change to the Annex B design was a radical change implemented after proceedings began, rather than a natural development of the exhibited product (paras [44], [54]).
2. The defence no longer left a threat to market the prototype or a colourable variation. Qualtex’s position was that it would sell the Annex B machine, and reverting to the prototype would have been inconsistent with that defence (paras [45]-[48]).
3. Numatic had goodwill and reputation in the combination of the Henry’s shape, shiny black bowler-hat top, brightly coloured base, smiling face and nose. The relevant question was whether the threatened replica, although lacking the name and smiling face, was likely to cause origin confusion and damage (paras [49], [53]).
4. The court applied the three elements of passing off stated in Reckitt & Colman Products Ltd v Borden Ltd [1990] 1 WLR 491: goodwill, misrepresentation and damage. In a quia timet claim the court necessarily evaluates the threatened conduct theoretically, but must reach its own assessment in light of the evidence (paras [35]-[37]).
5. Product shape may acquire secondary meaning where the public recognise it as indicating a particular source. The Henry’s anthropomorphic appearance and black bowler-hat lid were sufficient features to convey a strong message of genuine Henry origin, even without every element of the get-up. The omission of the name and face therefore did not avoid passing off (paras [82]-[85]).
6. The proposed Quick Clean branding was not a serious and effective distinguishing measure. Many consumers did not know that Numatic made Henry, Quick Clean had no relevant goodwill, and the name was descriptive. Some machines were also likely to be displayed without branding. The evidence established a real likelihood that at least some purchasers would buy the replica believing it to be a Henry (paras [86]-[88]).
7. Survey evidence required careful treatment because the questions could encourage respondents to speculate. The survey nevertheless supported the conclusion reached from the oral evidence and the judge’s own assessment. The court did not need to rely separately on possible spare-parts confusion or attribution of mechanical failure (paras [58]-[65], [89]-[90]).