Average Co-Inventor Count = 1.92
ph-index = 7
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 58,130 patents)
9 patents:
1. D789327 - Earphone
2. D704678 - Audio player
3. D701854 - Earphone
4. D692425 - Monitor display
5. D670274 - Earphone
6. D668631 - Earphone
7. D665775 - Headphone
8. D653243 - Earphone
9. D619553 - Television receiver