Average Co-Inventor Count = 3.77
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 (15 from 58,129 patents)
2. Sony Group Corporation (1 from 3,416 patents)
16 patents:
1. 11375307 - Earphone device
2. 10034076 - Earphone
3. 9961428 - Earphone device
4. 9949006 - Earphone device
5. 9949007 - Earphone device
6. 9930437 - Earphone device
7. 9826300 - Earphone device
8. 9491533 - Earphone device
9. 9232294 - Earphone device
10. 9179212 - Earphone device
11. 9020181 - Earphone device
12. 9014410 - Earphone device
13. 9008345 - Earphone device
14. 8913773 - Earphone device
15. 8611581 - Earphone device