Average Co-Inventor Count = 3.33
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. Sony Corporation (5 from 58,129 patents)
2. Sony Electronics Inc (4 from 2,335 patents)
5 patents:
1. 9449324 - Reducing TV licensing costs
2. 8755494 - Method and apparatus for voice interactive messaging
3. 8345830 - Method and apparatus for voice interactive messaging
4. 7570746 - Method and apparatus for voice interactive messaging
5. 7272634 - System and method for integrating multiple messaging systems