Case summary: Chugai Pharmaceutical Co v UCB Pharma SA

The Patents Court held that the act of state doctrine (which requires the English courts to refrain from adjudicating upon issues relating to the sovereign acts of a foreign state) did not apply to a contractual dispute about the payment of royalties under a patent licence in respect of a US patent where the patent's validity was not in issue and the patent licence contained an English exclusive jurisdiction clause​.

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