File:Number of relevant patent families based on first priority year, 2002–2021.png
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![File:Number of relevant patent families based on first priority year, 2002–2021.png](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Number_of_relevant_patent_families_based_on_first_priority_year%2C_2002%E2%80%932021.png/615px-Number_of_relevant_patent_families_based_on_first_priority_year%2C_2002%E2%80%932021.png?20231019220537)
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