# Patents Act 1949, Section 61: Counterclaim for revocation in action for infringement.


A defendant in an action for infringement of a patent may, without presenting a petition, apply in accordance with rules of courtrules made under section seven of the Northern Ireland Act 1962 by way of counterclaim in the action for revocation of the patent.

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Source: https://www.legislation.gov.uk/ukpga/Geo6/12-13-14/87/section/61 (the official version)
Page: https://openlegislation.uk/patents-act-1949/section-61
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.