Average Co-Inventor Count = 6.00
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. Intrado Corporation (1 from 68 patents)
1 patent:
1. 6744859 - System and apparatus for providing telephone communication between a caller and a special number call answering facility