Chiang, Ting-Wei; Wu, Xiaoping - 2022 - Manuscript date: 18 January 2022
This working paper provides a statistical analysis of 74 patent families which cover subject matter relevant to ten COVID-19 vaccines. These vaccines have accounted for 99% of the global COVID-19 vaccine production as of 31 December 2021, comprising over ten billion doses. Eight of them, namely...