GLONGHUI, April 25 | GlaxoSmithKline sued Pfizer and BioNTech in Delaware federal court on Thursday, accusing them of infringing on the company's patents relating to RNA (mRNA) technology. GlaxoSmithKline claims Pfizer's and BioNTech's ComirNaty vaccine infringes on the company's patent for an mRNA vaccine innovation developed “more than a decade before the COVID-19 pandemic broke out.” A Pfizer spokesperson said in a statement that they are confident of our intellectual property position in Comirnaty and intend to make a “strong defense” against GlaxoSmithKline's claim. A GlaxoSmithKline spokesperson said the company believes its patents provide the foundational technology for Pfizer and BioNTech's COVID-19 mRNA vaccines and said it is willing to license these patents on commercially reasonable terms and ensure patients continue to receive these vaccines.