Average Co-Inventor Count = 4.19
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. Lucent Technologies Inc. (2 from 9,364 patents)
2. At+t Corp. (2 from 4,208 patents)
3. At&t Intellectual Property I, L.p. (1 from 16,478 patents)
5 patents:
1. 8130751 - Active user registry
2. 7408920 - Active user registry
3. 6546005 - Active user registry
4. 5727047 - Arrangement for interfacing a telephone device with a personal computer
5. 5706334 - Apparatus for providing a graphical control interface