Patent Landscape of Power Electronic Technologies for Electric Mobility

Abstract

This paper examines the patent landscape for automotive power electronics as key technology for electric mobility in a time frame from 2013 until 2023. Thus, an extensive technology database is being designed, covering detailed specifications of more than 42,000 patent applications in six different world regions. Using text and data mining functionalities for the analysis, sophisticated statements for technology development trends and research activities can be identified. Results visualize the technological position, research networks, innovation dynamics and the competitiveness of geographical regions (China, Germany, Japan, South Korea and USA) as well as leading companies in the field of automotive power electronics. The study shows that Japanese institutions were by far leading the technology development in selected areas, although loosing significant shares over time, while China’s patent market and technological position has gained significant importance since 2013.