Average Co-Inventor Count = 4.00
ph-index = 3
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. Ameritech Corporation (3 from 159 patents)
3 patents:
1. 7283807 - Method and telecommunication system for indicating the receipt of a data message
2. 7020458 - Method and telecommunication system for indicating the receipt of a data message
3. 6490444 - Method and telecommunication system for indicating the receipt of a data message