Average Co-Inventor Count = 3.75
ph-index = 8
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. Pitney Bowes Inc. (6 from 2,979 patents)
2. The Escher Group, Ltd. (2 from 15 patents)
8 patents:
1. 6609117 - System and method for distributing postage over a public network, enabling efficient printing of postal indicia on items to be mailed and authenticating the printed indicia
2. 6567794 - Method for access control in a virtual postage metering system
3. 6466921 - Virtual postage meter with secure digital signature device
4. 6349292 - System and method for distributing postage over a public network, enabling efficient printing of postal indicia on items to be mailed and authenticating the printed indicia
5. 5742682 - Method of manufacturing secure boxes in a key management system
6. 5680456 - Method of manufacturing generic meters in a key management system
7. 5661803 - Method of token verification in a key management system
8. 5655023 - Advanced postage payment system employing pre-computed digital tokens