IL-21 (heterodimeric Fc-fused IL-21) fused to immunoglobulin heavy chain constant region… Grant US-10800825-B2 United States of America 13 Oct 2020
IL-21 (HETERODIMERIC FC-FUSED IL-21) FUSED TO IMMUNOGLOBULIN HEAVY CHAIN CONSTANT REGION… Application EP-3508495-A4 European Patent Office 22 Jan 2020