Popular Prize | European Inventor Award 2021

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The finalists

Fifteen inventors or inventor teams from around the world have been nominated for this year’s Popular Prize.

They are in five categories: Industry, Lifetime achievement, Non-EPO countries, SMEs and Research.

Find out more about the finalists
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Karl Leo (DE)
Advances in organic semiconductors

About the invention

The German physicist advanced organic semiconductors by improving their conductivity through a technique called doping. Currently, half of the world's smartphones and many types of solar cells incorporate his technology. He has also founded several companies in a career spanning over 30 years.

More details on www.epo.org

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