Average Co-Inventor Count = 1.16
ph-index = 24
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 (51 from 58,129 patents)
2. Sony Group Corporation (3 from 3,416 patents)
55 patents:
1. D1050068 - Speaker
2. D1008209 - Speaker
3. 11509983 - Audio reproduction device
4. D928741 - Audio system
5. D900059 - Audio system
6. D682257 - Earphone
7. D679682 - Earphone
8. D676426 - Earphone
9. D669057 - Earphone
10. D666990 - Headphone
11. D662086 - Earphone
12. D656125 - Headphone
13. D635547 - Headphone
14. D635546 - Headphone
15. D620474 - Headphone