Average Co-Inventor Count = 2.71
ph-index = 5
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. (5 from 4,208 patents)
2. At&t Bell Laboratories (1 from 3,345 patents)
6 patents:
1. 6226358 - Voice-mail greeting message notification
2. 6169786 - Method for accomplishing complete re-dial
3. 6138008 - Wireless telephone menu system
4. 6016342 - Telecommunications apparatus for initiating calls based on past calling
5. 5392336 - Data message storage and pick up service
6. 5018191 - Special service call routing