Average Co-Inventor Count = 1.26
ph-index = 6
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 (9 from 58,129 patents)
9 patents:
1. D956015 - Speaker box
2. D931829 - Speaker box
3. D697047 - Headphone
4. D695739 - Head mountable display
5. D664180 - Projector
6. D547285 - Disc player
7. D538256 - Disc player
8. D531151 - Disc recorder
9. D504414 - Combined headphone and audio player