Average Co-Inventor Count = 2.70
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Educational Testing Service (13 from 222 patents)
13 patents:
1. 12468887 - Machine learning-based metaphor detection
2. 12046155 - Automatic evaluation of argumentative writing by young students
3. 11749131 - E-book reading comprehension analytics
4. 11410072 - Computer-implemented systems and methods for detection of sentiment in writing
5. 11151894 - Systems and methods for scoring argument critique written essays
6. 11024194 - Virtual reading companion technology to support the acquisition of reading fluency
7. 10769962 - Systems and methods for generating a personalization score for a constructed response
8. 10699589 - Systems and methods for determining the validity of an essay examination prompt
9. 10585985 - Systems and methods for automatic detection of idiomatic expressions in written responses
10. 10515314 - Computer-implemented systems and methods for generating a supervised model for lexical cohesion detection
11. 10134297 - Systems and methods for determining text complexity
12. 9852379 - Systems and methods for constructed response scoring using metaphor detection
13. 9519634 - Systems and methods for determining lexical associations among words in a corpus