Webb, Michael; Short, Nick; Bloom, Nicholas; Lerner, Joshua - 2018
such as Sony, Canon, and Fujitsu. Chinese patenting in the US is small but growing rapidly, and world-leading for drone … semiconductors in the late 1990s. In most high-tech fields, Japan is the only country outside the US with significant US patenting … activity; however, whereas Japan played an important role in the burst of neural network patenting in the 1990s, it has not …
