Average Co-Inventor Count = 4.29
ph-index = 2
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 (3 from 222 patents)
3 patents:
1. 11749131 - E-book reading comprehension analytics
2. 11024194 - Virtual reading companion technology to support the acquisition of reading fluency
3. 8239762 - Method and system for automatic generation of adapted content to facilitate reading skill development for language learners