On April 22, 2024, the PTAB issued final written decisions in IPR2023-00070 and IPR2023-00074, filed by Bluebird Bio on two patents related to recombinant lentiviral vectors — U.S. Patent Nos. 7,541,179 and 8,058,061, owned by Sloan Kettering Institute for Cancer Research. The PTAB ruled that all challenged claims of the…