Average Co-Inventor Count = 2.00
ph-index = 1
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. (1 from 243 patents)
2. American Telephone and Telegraph (at&t) (1 from 2 patents)
1 patent:
1. D290006 - Telephone speaker housing