![UPC news update on protective letters](/sites/default/files/styles/172x172/public/2023-10/upc-news-prickly-pear-are-you-protected.jpg?itok=-ndrnTAH)
Unitary patent
[UPC News] Protective letters: Have you protected your back?
Since the launch of the UPC system on 1 June 2023, holders of European patents and European patents with unitary effect (‘unitary patents’) have been able to bring actions against third parties in a single legal procedure.