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Is the invention obvious?

Overcoming practical difficulties

4.79 In V-Pile Technology (Luxembourg) SA v Peck Brothers Construction Pte Ltd [2000] 3 SLR 358 followed the decision of the UK Court of Appeal in Gadd and Mason v Manchester Corporation (1892) 9 RPC 516, in which Rubin J held that a new use of a known contrivance may be non-obvious if the new use involves practical difficulties that the inventor has overcome by ingenuity of his own.