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. Bell Telephone Laboratories (1 from 2,714 patents)
2. American Telephone and Telegraph, Co. (1 from 386 patents)
3. At&t Information Systems Inc. (1 from 243 patents)
1 patent:
1. 4736415 - Resistive line feed circuit