Average Co-Inventor Count = 1.60
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. Sony Corporation (4 from 58,131 patents)
2. Sony Electronics Inc (4 from 2,335 patents)
4 patents:
1. 8706677 - Methods and apparatus for determining an identity of a user
2. 8291037 - Networked local media cache engine
3. 7594121 - Methods and apparatus for determining an identity of a user
4. 7568042 - Networked local media cache engine