Average Co-Inventor Count = 4.00
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 (2 from 58,132 patents)
2. Sony Network Entertainment International LLC (2 from 70 patents)
2 patents:
1. 9160720 - Digital rights management of streaming contents and services
2. 8661255 - Digital rights management of streaming contents and services