“Sponsor shall use its best efforts to develop and supply JGR with the best available products together with all necessary technical advice, materials, and support services. JGR shall provide all reasonable support and feedback to help Sponsor improve the performance of its products and services.
“[31] … The point made by Exclusive was that it is not enough to allege or even prove that sales of so many chairs and so on were made when a Canberra or Strasbourg table was sold. Alfrank had to satisfy the burdens of causation and remoteness generally (see Abbott, [[2014] EWHC 2924 (IPEC) ], at [23]-[25]). [32] I agree. By way of an example, even if a supermarket claimant were to prove beyond doubt that for every packet of its own-brand cornflakes sold, statistically 0.23 tins of beans are sold to the same customer, together with 0.11 large wholemeal sliced loaves and so on, sales of the latter would not on that evidence have been caused by the sale of the cornflakes. In my view, to make good any claim to damages for loss of sales of convoyed goods, the claimant must prove that, assessed objectively, there was a causative link in the mind of the purchaser between his or her purchase of the infringing product and their purchase of one or more other specific products. Only then will the sale of the infringing product have caused the sale of those other products (within the legal sense of causation) – as opposed to the latter sales being merely statistically linked as a matter of probability. If causation is proved, subject to unusual facts being raised by the defendant, losses related to the latter sales will be expected to satisfy the requirements of the law on remoteness generally.”