Average Co-Inventor Count = 2.67
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. Qwest Communications International Inc. (3 from 435 patents)
2. Qwest Communications Inc. (1 from 5 patents)
4 patents:
1. 8156045 - Methods and systems for associating customized advertising materials with billing statements
2. 6747749 - Document reprint method and system
3. 6496810 - Ultra-heavy mail piece processing system
4. 6256624 - Computing system for operating report production facilities