Average Co-Inventor Count = 1.40
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. Alexa Internet (2 from 13 patents)
2. Northrop Grumman Systems Corporation (1 from 3,388 patents)
3 patents:
1. 7580909 - Visual representation tool for structured arguments
2. 7159023 - Use of web usage trail data to identify relationships between browsable items
3. 6691163 - Use of web usage trail data to identify related links