Average Co-Inventor Count = 1.43
ph-index = 4
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 58,129 patents)
2. Sony Electronics Inc (4 from 2,335 patents)
3. Other (1 from 832,680 patents)
5 patents:
1. 6222809 - Compact disc player with lid for displaying compact disc jacket art
2. D419549 - Rear projection television receiver
3. D418832 - Rear projection television receiver
4. D414177 - Rear projection television receiver
5. D400201 - Television receiver