Arbutus has finally sued Moderna for allegedly infringing its LNP patents. I previously blogged about the Arbutus/Moderna patent dispute here, here and here. Arbutus has already defended the validity of two of its patents, which puts it case on strong footing. But Moderna may nevertheless have a targeted non-infringement defense that could neutralize Arbutus’ claim to any royalties on Moderna’s Covid vaccine.