Average Co-Inventor Count = 4.61
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. Nec Corporation (5 from 35,658 patents)
5 patents:
1. D512713 - Portable wireless telephone
2. D510345 - Portable wireless telephone
3. D507555 - Portable wireless telephone
4. D505944 - Portable wireless telephone
5. D501190 - Portable wireless telephone