Section 36(4)
PA 1977
Patents Act 1977 · United Kingdom
Subject to the provisions of those sections, where two or more persons are proprietors of a patent, anyone else may supply one of those persons with the means, relating to an essential element of the invention, for putting the invention into effect, and the supply of those means by virtue of this subsection shall not amount to an infringement of the patent.
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Source: legislation.gov.uk · retrieved 2026-09-04