A British drugmaker, GlaxoSmithKline (GSK), has sued American pharmaceutical company Moderna claiming it violated patent rights in its mRNA technology used to develop its COVID-19 and RSV vaccines.

GlaxoSmithKline sued Moderna in Delaware federal court on Tuesday for allegedly violating GSK's patent rights in messenger RNA (mRNA) technology with its blockbuster COVID-19 vaccine Spikevax. The lawsuit said Moderna's lipid nanoparticles for transporting mRNA into the human body infringe several GSK patents covering similar innovations.

GlaxoSmithKline has filed lawsuits against Moderna in a Delaware federal court, alleging infringement of patents related to mRNA technology in Moderna's COVID-19 vaccine Spikevax and RSV shot mResvia.

GlaxoSmithKline is suing Moderna for allegedly using technology patented by GSK in its COVID-19 vaccine. Why it matters: It's the latest in a series of legal fights over who owns the intellectual property behind mRNA technology and whether some companies are entitled to royalties on future sales.

By Blake Brittain (Reuters) -British drugmaker GlaxoSmithKline sued Moderna in U.S. federal court in Delaware on Tuesday, accusing it of violating GSK patent rights in messenger RNA technology with its blockbuster COVID-19 vaccine Spikevax and RSV shot mResvia.

GlaxoSmithKline (GSK) has filed a patent infringement lawsuit against Moderna in Delaware, accusing the company of using its patented mRNA technology in their Spikevax COVID-19 vaccine without permission.