Average Co-Inventor Count = 2.73
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. Jvc Kenwood Corporation (6 from 1,370 patents)
6 patents:
1. D1090428 - Battery charger for earphones
2. D1048903 - Car navigation device
3. D1033399 - Earphone
4. D889437 - Earphone
5. D856303 - Headphone
6. D833997 - Earphone