Average Co-Inventor Count = 4.44
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. American Telephone and Telegraph, Co. (1 from 386 patents)
2. At&t Information Systems Inc. (1 from 243 patents)
3. American Telephone and Telegraph Company; At&t Information Systems (1 from 26 patents)
2 patents:
1. D293441 - Telephone stand
2. D293321 - Telephone stand