Average Co-Inventor Count = 2.00
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 (2 from 3,345 patents)
2. American Telephone & Telegraph Co., At&t Bell Laboratories (1 from 745 patents)
3 patents:
1. 4691347 - Method and apparatus for controlling a conference
2. 4653045 - Interactive facility control arrangement
3. 4635251 - Meet-me conference with control capabilities