Average Co-Inventor Count = 6.95
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. At+t Corp. (3 from 4,208 patents)
2. Lucent Technologies Inc. (1 from 9,364 patents)
4 patents:
1. 5912951 - Voice mail system with multi-retrieval mailboxes
2. 5740234 - Telephone call monitoring method and apparatus
3. 5633924 - Telecommunication network with integrated network-wide automatic call
4. 5448632 - Call monitoring system for intelligent call processing