Gemstar defeated over TV patents
A judge in London’s Patents Court has invalidated three European patents owned by Gemstar, in a decision that could have wide-ranging implications for TV companies that use electronic programming guides (EPGs)
In a decision on November 26, Mr Justice Mann
found the patents invalid on various grounds after Gemstar
asserted them against cable TV company Virgin Media.
Gemstar, which has licensed its patents widely in the media
industry, sued Virgin in...
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