Average Co-Inventor Count = 5.46
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. Pearson Education, Inc. (4 from 289 patents)
4 patents:
1. 9672470 - Network-probability recommendation system
2. 9189968 - Network-probability recommendation system
3. 8932122 - Evaluation and rectification system
4. 8753200 - Evaluation and rectification system