Average Co-Inventor Count = 3.00
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 Intellectual Property I, LP (3 from 16,492 patents)
2. At+t Corp. (1 from 4,208 patents)
4 patents:
1. 7996527 - System, method and apparatus for playing a sound identifier based on connection status
2. 7805487 - System, method and apparatus for communicating via instant messaging
3. 7584257 - System, method and apparatus for communicating via instant messaging
4. 7043530 - System, method and apparatus for communicating via instant messaging