Average Co-Inventor Count = 3.60
ph-index = 1
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. West Corporation (3 from 634 patents)
3 patents:
1. 11265417 - AC/DC phone line detector
2. 10397401 - PSAP in a box
3. 10182145 - AC/DC phone line detector