Average Co-Inventor Count = 5.22
ph-index = 4
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. Bell Telephone Laboratories (2 from 2,714 patents)
2. At&t Information Systems Inc. (2 from 243 patents)
4 patents:
1. D279289 - Handset telephone base
2. D277666 - Housing for a telephone station handset
3. D271691 - Telephone stand
4. D246584 - Telephone stand