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. U S West, Inc. (1 from 125 patents)
4. Mediaone Group, Inc. (1 from 91 patents)
2 patents:
1. 5978454 - Method and instructions for fax mail user interface
2. 4899377 - Communication terminal telephone directory with dynamic directory tabbing