Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12249324 | Targeted content feedback in spoken language learning and assessment | Xinhao Wang, Christopher Hamill | 2025-03-11 |
| 11854530 | Automated content feedback generation system for non-native spontaneous speech | Su-Youn Yoon, Ching-Ni Hsieh, Matthew Mulholland, Yuan-Fang Wang | 2023-12-26 |
| 11475273 | Deep convolutional neural networks for automated scoring of constructed responses | Derrick Higgins, Lei Chen, Michael Heilman, Nitin Madnani | 2022-10-18 |
| 11455999 | Detection of off-topic spoken responses using machine learning | Xinhao Wang, Su-Youn Yoon, Keelan Evanini, Yao Qian | 2022-09-27 |
| 11417339 | Detection of plagiarized spoken responses using machine learning | Xinhao Wang, Keelan Evanini, Yao Qian | 2022-08-16 |
| 10867525 | Systems and methods for generating recitation items | Su-Youn Yoon, Lei Chen, Keelan Evanini | 2020-12-15 |
| 10755595 | Systems and methods for natural language processing for speech content scoring | Lei Chen, Anastassia Loukina | 2020-08-25 |
| 10628731 | Deep convolutional neural networks for automated scoring of constructed responses | Derrick Higgins, Lei Chen, Michael Heilman, Nitin Madnani | 2020-04-21 |
| 10373047 | Deep convolutional neural networks for automated scoring of constructed responses | Derrick Higgins, Lei Chen, Michael Heilman, Nitin Madnani | 2019-08-06 |
| 10283142 | Processor-implemented systems and methods for determining sound quality | Zhou Yu, Vikram Ramanarayanan, David Suendermann-Oeft, Xinhao Wang, Lei Chen +2 more | 2019-05-07 |
| 9928754 | Systems and methods for generating recitation items | Su-Youn Yoon, Lei Chen, Keelan Evanini | 2018-03-27 |
| 9799228 | Systems and methods for natural language processing for speech content scoring | Lei Chen, Anastassia Loukina | 2017-10-24 |
| 9704413 | Non-scorable response filters for speech scoring systems | Su-Youn Yoon, Derrick Higgins, Shasha Xie, Je Hun Jeon, Keelan Evanini +2 more | 2017-07-11 |
| 9652991 | Systems and methods for content scoring of spoken responses | Xinhao Wang, Shasha Xie | 2017-05-16 |
| 9652999 | Computer-implemented systems and methods for estimating word accuracy for automatic speech recognition | Su-Youn Yoon, Lei Chen | 2017-05-16 |
| 9449522 | Systems and methods for evaluating difficulty of spoken text | Su-Youn Yoon, Yeonsuk Cho, Diane Napolitano | 2016-09-20 |
| 9361908 | Computer-implemented systems and methods for scoring concatenated speech responses | Su-Youn Yoon, Lei Chen, Shasha Xie, Xiaoming Xi, Chaitanya Ramineni | 2016-06-07 |
| 9218339 | Computer-implemented systems and methods for content scoring of spoken responses | Keelan Evanini, Lei Chen, Shasha Xie, Wenting Xiong, Fei Huang +2 more | 2015-12-22 |
| 9177558 | Systems and methods for assessment of non-native spontaneous speech | Lei Chen, Xiaoming Xi | 2015-11-03 |
| 9087519 | Computer-implemented systems and methods for evaluating prosodic features of speech | Xiaoming Xi | 2015-07-21 |
| 8990082 | Non-scorable response filters for speech scoring systems | Su-Youn Yoon, Derrick Higgins, Shasha Xie, Je Hun Jeon, Keelan Evanini | 2015-03-24 |
| 8478597 | Method and system for assessing pronunciation difficulties of non-native speakers | Derrick Higgins, Yoko Futagi, Rene Lawless | 2013-07-02 |
| 8392190 | Systems and methods for assessment of non-native spontaneous speech | Lei Chen, Xiaoming Xi | 2013-03-05 |
| 8209173 | Method and system for the automatic generation of speech features for scoring high entropy speech | Isaac Bejar | 2012-06-26 |
| 7840404 | Method and system for using automatic generation of speech features to provide diagnostic feedback | Xiaoming Xi, Isaac Bejar | 2010-11-23 |