Average Co-Inventor Count = 1.38
ph-index = 3
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 (9 from 58,130 patents)
9 patents:
1. D1049389 - Breast cancer testing device
2. 11159875 - Audio output apparatus
3. D922348 - Earphone
4. D918177 - Earphone
5. D870065 - Earphone
6. D870081 - Earphone
7. D854511 - Headphone
8. 9998649 - Portable device, information processing method, and program
9. 9350912 - Portable device, information processing method, and program