Average Co-Inventor Count = 2.00
ph-index = 8
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. Yamaha Corporation (8 from 5,452 patents)
8 patents:
1. D753091 - Remote controller for earphones
2. D743949 - Earphone
3. D742859 - Earphone
4. D742860 - Earphone
5. D742861 - Earphone
6. D712375 - Headphone
7. D696228 - Headphone
8. D684139 - Headphone