Average Co-Inventor Count = 4.21
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. Stamps Com Inc. (4 from 180 patents)
4 patents:
1. 7567940 - Method and apparatus for on-line value-bearing item system
2. 7233929 - Postal system intranet and commerce processing for on-line value bearing system
3. 7216110 - Cryptographic module for secure processing of value-bearing items
4. 7149726 - Online value bearing item printing