Average Co-Inventor Count = 4.09
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 (3 from 35,658 patents)
3 patents:
1. D518461 - Portable wireless telephone
2. D509500 - Portable wireless telephone
3. D507556 - Portable wireless telephone