Average Co-Inventor Count = 3.45
ph-index = 4
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. Worldcom, Inc. (2 from 132 patents)
2. Other (1 from 832,891 patents)
3. Mci, Inc. (1 from 161 patents)
4. Mci Worldcom, Inc. (1 from 72 patents)
5 patents:
1. 7180990 - Prepaid telephone calling card with message recording capability
2. 6542601 - Method and system for automated customer support services
3. 6507644 - Pre-paid telephone calling card linked to a stored value account
4. 6404869 - Preferred billing rate pre-paid telephone calling card
5. 6327363 - Method and system for automated customer services