Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9852655 | Systems and methods for extracting keywords in language learning | Katharine Nielson, Kasey Kirkham, Andrew Paul Breen | 2017-12-26 |
| 9711064 | Systems and methods for calculating text difficulty | Katharine Nielson, Kasey Kirkham, Andrew Paul Breen | 2017-07-18 |
| 9666098 | Language learning systems and methods | Katharine Nielson, Kasey Kirkham, Andrew Paul Breen | 2017-05-30 |