Average Co-Inventor Count = 2.03
ph-index = 3
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 Bell Laboratories (3 from 3,345 patents)
3 patents:
1. 5363204 - Facsimile machine having user help capability
2. 5243437 - Fax machine having automated maintenance features
3. 5127047 - Facsimile machine having user notification capability