Average Co-Inventor Count = 3.33
ph-index = 2
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. Qwest Communications International Inc. (1 from 435 patents)
2. U S West Technologies, Inc. (1 from 46 patents)
3. Qwest Communications Int'l., Inc. (1 from 16 patents)
3 patents:
1. 7133508 - Prepaid long distance call system and method
2. 6748058 - Caller identification system with announcement capability
3. 5751793 - Method and instructions for visual voice messaging user interface