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Comparing the doctrine of equivalents across Asia

Karry Lai, Hong Kong


Singapore rejected the doctrine of equivalents in a recent patent case. Karry Lai analyses the decision and asks how other Asian jurisdictions view the doctrine

Singapore’s Court of Appeal in its Lee Tat Cheng v Maka GPS Technologies decision on April 6 rejected the doctrine of equivalents (DoE). In the US the DoE has widely been adopted and in Europe the test for patent infringement...


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