1, China. The number of patent applications for seawater desalination in China reached 52,574, accounting for 38.87% of the total patent applications for seawater desalination in the world.
2. America. The number of patent applications for seawater desalination in the United States accounts for 22.89% of the total patent applications for seawater desalination in the world.
3.japan. The number of patent applications for seawater desalination in Japan accounts for 12.438+0% of the total patent applications for seawater desalination in the world.