Average Co-Inventor Count = 5.00
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. At&t Information Systems Inc. (2 from 243 patents)
2 patents:
1. D279289 - Handset telephone base
2. D277666 - Housing for a telephone station handset