Average Co-Inventor Count = 1.56
ph-index = 11
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)
15 patents:
1. D701854 - Earphone
2. D691583 - Headphone
3. D683328 - Earphone
4. D679682 - Earphone
5. D677243 - Headphone
6. D670274 - Earphone
7. D668637 - Earphone
8. D666990 - Headphone
9. D656125 - Headphone
10. D637180 - Earphone
11. D634730 - Headphone
12. D632282 - Earphone
13. D629389 - Speaker box
14. D610129 - Earphone
15. D604272 - Earphone