Interpreting patent claims and the meaning of ‘dry fryer’

The High Court case of Jarden Solutions (Europe) Ltd v SEB SA concerned a dispute about deep fat fryers.

SEB had a European patent for a ‘fryer with automatic fat coating’, which it claimed was infringed by Jarden’s import and sale of a different fryer. The competing fryers operated in a broadly similar manner, by stirring and turning the food to coat it with a thin film of oil while cooking the food by means of a flow of heat from above. Jarden denied infringement and sought revocation of SEB’s patent on the basis of the prior art…

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