** Shares of vaccine makers Pfizer and BioNTech
fall between 2% to 3%
** Drugmaker GlaxoSmithKline sues BNTX and PFE accusing them of infringing its patents related to messenger RNA (mRNA) technology in the companies' blockbuster COVID-19 vaccines
** GSK says that PFE and BNTX's Comirnaty vaccines violate its patent rights in mRNA-vaccine innovations developed "more than a decade before" the outbreak of the COVID-19 pandemic
** GSK also asked the Delaware federal court for an unspecified amount of monetary damages from both companies that includes an ongoing patent-licensing fee
** A Pfizer spokesperson said in a statement that the company is "confident in our IP position around Comirnaty" and intends to "vigorously defend" against GSK's claims, while a BioNTech spokesperson declined to comment
** Including session moves, PFE down 11.3% and BNTX down 18.1% YTD
(Reporting by Sneha S K in Bengaluru)
((Sneha.SK@thomsonreuters.com;))
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