Fuel Cell Patents: twenty years of progress?

This data-file tabulates the numbers of patents filed into different types of fuel-cells, from 2000-2020, globally and in key geographies: China, Japan, Korea and the US.

Research activity peaked in 2008 and has since fallen by 30%, as Japanese research into Solid Oxide fuel cells and Proton Exchange Membranes both declined by 75%; however China’s research has ascended and comprises 65% of the patent filings from 2019.

In particular, we focus in upon Molten Carbonate Fuel Cells, tabulating 120 patents into this reactor design, including descriptions of each patent and a categorization by company.

An overview of different fuel cell types is also provided as an introduction to the topic.