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WIPO. (November 26, 2020). Ranking of the 20 national patent offices with the most patents in force in 2019 [Graph]. In Statista. Retrieved June 22, 2021, from https://www.statista.com/statistics/257172/ranking-of-the-20-countries-with-the-most-patents-in-force/
WIPO. "Ranking of the 20 national patent offices with the most patents in force in 2019." Chart. November 26, 2020. Statista. Accessed June 22, 2021. https://www.statista.com/statistics/257172/ranking-of-the-20-countries-with-the-most-patents-in-force/
WIPO. (2020). Ranking of the 20 national patent offices with the most patents in force in 2019. Statista. Statista Inc.. Accessed: June 22, 2021. https://www.statista.com/statistics/257172/ranking-of-the-20-countries-with-the-most-patents-in-force/
WIPO. "Ranking of The 20 National Patent Offices with The Most Patents in Force in 2019." Statista, Statista Inc., 26 Nov 2020, https://www.statista.com/statistics/257172/ranking-of-the-20-countries-with-the-most-patents-in-force/
WIPO, Ranking of the 20 national patent offices with the most patents in force in 2019 Statista, https://www.statista.com/statistics/257172/ranking-of-the-20-countries-with-the-most-patents-in-force/ (last visited June 22, 2021)
