Average Co-Inventor Count = 3.36
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 (6 from 222 patents)
6 patents:
1. 11410072 - Computer-implemented systems and methods for detection of sentiment in writing
2. 9959776 - System and method for automated scoring of texual responses to picture-based items
3. 9836985 - Systems and methods for automated scoring of textual responses to picture-based items
4. 9390078 - Computer-implemented systems and methods for detecting punctuation errors
5. 9342499 - Round-trip translation for automated grammatical error correction
6. 9208139 - System and method for identifying organizational elements in argumentative or persuasive discourse