Inventor
NIELSON KATHARINE
US10 patents
Patents
10 patentsUS9262935B2Feb 16, 2016
Systems and methods for extracting keywords in language learning
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Systems and methods for extracting keywords in language learning
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Systems and methods for calculating text difficulty
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US9666098B2May 30, 2017
Language learning systems and methods
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US10410539B2Sep 10, 2019
Systems and methods for calculating text difficulty
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US10147336B2Dec 4, 2018
Systems and methods for generating distractors in language learning
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US9875669B2Jan 23, 2018
Systems and methods for generating distractors in language learning
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US9852655B2Dec 26, 2017
Systems and methods for extracting keywords in language learning
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US10438509B2Oct 8, 2019
Language learning systems and methods
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US10720078B2Jul 21, 2020
Systems and methods for extracting keywords in language learning
VOXY INC0 citations51