Average Co-Inventor Count = 3.11
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. Audio-technica Corporation (11 from 216 patents)
11 patents:
1. D1035611 - Headphone
2. D1031691 - Headphone
3. D1024942 - Battery charger for earphones
4. D997133 - Earphone
5. 11399227 - Wireless earphone charger, wireless earphone and wireless earphone system
6. D948483 - Earphone
7. D934840 - Earphone
8. D934841 - Earphone
9. D933601 - Battery charger for earphone
10. D924850 - Earphone
11. D893450 - Headphone