Average Co-Inventor Count = 2.75
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 (3 from 222 patents)
3 patents:
1. 6234806 - System and method for interactive scoring of standardized test responses
2. 6120299 - System and method for interactive scoring of standardized test responses
3. 6056556 - Computer-based simulation examination of architectural practice