The Court of Appeal allowed Grimme’s appeal, holding that Grimme’s patent for an agricultural machine for harvesting and separating potatoes (from other materials such as earth, clods, stones, weeds or the like) featuring rubber rollers, was inventive.

Of particular interest was the Court of Appeal’s clarification of the law of contributory infringement (s.60(2) Patents Act 1977 / Article 26 of the European Patent Convention) in upholding the High Court’s finding that the defendant’s supply of a steel-rollered machine, designed and promoted to enable the steel rollers to be changed for rubber rollers, infringed Grimme’s patent.

A full summary of this case has been published on Kluwer IP Law.


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