Average Co-Inventor Count = 3.91
ph-index = 5
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. At&t Bell Laboratories (6 from 3,345 patents)
6 patents:
1. D345976 - Telephone base
2. D345972 - Video telephone set
3. D345971 - Video telephone station
4. D342261 - Telephone handset
5. D321870 - Video telephone set
6. D315557 - Video telephone station