Average Co-Inventor Count = 3.43
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. Other (2 from 832,761 patents)
2 patents:
1. 7826868 - Extension of a local area phone system to a wide area network
2. 7742768 - Extension of a local area phone system to a wide area network