This summary reports patent infringement and validity outcomes in English courts, indicating significant legal trends.
Abstract 2023 saw 15 decisions, concerning 22 patents, in inter partes proceedings in which patent infringement and/or validity was in issue. 6 patents were held to be valid and infringed, 9 not to be infringed and 9 to be invalid, all but 3 on the ground of obviousness. 2023 also saw 6 Court of Appeal decisions in such proceedings, in 3 of which the trial judge was reversed on validity - in two cases in favour of the patentee.
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Trevor Cook (2024) studied this question.
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