Average Co-Inventor Count = 6.15
ph-index = 2
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 (4 from 58,129 patents)
4 patents:
1. 8409748 - Battery and electronic apparatus
2. 8098326 - Electronic device and accessory device
3. 7700224 - Electronic apparatus with secure battery inserting and removing operation
4. 7612826 - Electronic device and accessory device