Average Co-Inventor Count = 4.29
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. Mci, Inc. (2 from 161 patents)
2. Verizon Patent and Licensing Inc. (1 from 6,565 patents)
3 patents:
1. 8130914 - Calling card having an associated pre-recorded personal greeting
2. 7180990 - Prepaid telephone calling card with message recording capability
3. 7145989 - Pre-paid telephone calling card having an associated pre-recorded personal greeting