INVENTOR

William Justin Kroll

1889 - 1973

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William Justin Kroll (; born Guillaume Justin Kroll, Luxembourgish: [kʀol]; November 24, 1889 – March 30, 1973) was a Luxembourgish metallurgist, born in Esch-sur-Alzette. He is best known for inventing the Kroll process in 1940, which is used commercially to extract metallic titanium from ore. Read more on Wikipedia

His biography is available in different languages on Wikipedia. William Justin Kroll is the 327th most popular inventor (down from 300th in 2019), the 51st most popular biography from Luxembourg (down from 37th in 2019) and the most popular Luxembourger Inventor.

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Among INVENTORS

Among inventors, William Justin Kroll ranks 327 out of 426Before him are Alexander P. de Seversky, George Devol, Ottmar Mergenthaler, Jacob Ellehammer, Jozef Murgaš, and Georges Beuchat. After him are Peter Carl Goldmark, Jack Northrop, Hannibal Goodwin, An Wang, Victor Hasselblad, and John Philip Holland.

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Contemporaries

Among people born in 1889, William Justin Kroll ranks 224Before him are Stafford Cripps, Anita Loos, Claudia Muzio, Balthasar van der Pol, Marcel Moyse, and Yakup Kadri Karaosmanoğlu. After him are Ted Wilde, Carl Folcker, Nezihe Muhiddin, Carl O. Sauer, Hugo Wieslander, and Francis Spellman. Among people deceased in 1973, William Justin Kroll ranks 206Before him are Vladimír Syrovátka, Gram Parsons, Jascha Horenstein, Romeo Bertini, Josué de Castro, and Carlos Menditeguy. After him are Hans Haas, Jean Barraqué, Ōten Shimokawa, Rodolphe Hiden, François Bonlieu, and Washington Ortuño.

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In Luxembourg

Among people born in Luxembourg, William Justin Kroll ranks 51 out of 95Before him are Paul Eyschen (1841), Jean Asselborn (1949), Léon Krier (1946), Johny Schleck (1942), Lydie Polfer (1952), and Curt von François (1852). After him are Princess Sophie of Luxembourg (1902), Jean-Jacques Willmar (1792), Michel Scheuer (1927), Jacques Poos (1935), Prince Guillaume of Luxembourg (1963), and Désirée Nosbusch (1965).

Among INVENTORS In Luxembourg

Among inventors born in Luxembourg, William Justin Kroll ranks 1