Prof. Barthlott decided to stay in the world of academia and research. Prof. Ishida joined academia after retiring from INAX. Both have helped numerous industries build up a product portfolio inspired by their innovative insights and a strong portfolio of patents. The first commercial product that turned mainstream worldwide is a facade paint marketed as Lotusan. First introduced a decade ago, there are already an estimated 500,000 buildings worldwide covered in this paint. These buildings do not need any cleaning maintenance for minimum five years.

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