Average Co-Inventor Count = 2.00
ph-index = 1
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 Dadc US Inc (3 from 11 patents)
2. Sony Corporation (1 from 58,129 patents)
3 patents:
1. 9426410 - Secure online access control for accessing media content from discs
2. 9336826 - Method for facilitating online interactions initiated using optical disc players
3. 8818169 - Disc unlock code distribution control via remote physical action and location