This Planet Money episode investigate the issue in an interesting analysis: https://www.npr.org/2020/06/12/876097416/patent-racism https://www.npr.org/2020/06/1

This Planet Money episode investigate the issue in an interesting analysis: https://www.npr.org/2020/06/12/876097416/patent-racism https://www.npr.org/2020/06/12/876097416/patent-racism