Samsung Bioepis filed an IPR petition against Regeneron’s US10,464,992 relating to formulations of aflibercept. Samsung Bioepis has sought joinder with the Celltrion IPR filed against the same Regeneron patent on 17 January 2023.
Samsung Bioepis has previously filed petitions against Regeneron’s method of treatment patent US11,253,572 in April 2023 and US10,888,601 in April 2023, with a third IPR previously filed against a third method of treatment patent US10,130,681 in January 2023.