Average Co-Inventor Count = 2.76
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. Pitney Bowes Inc. (4 from 2,979 patents)
4 patents:
1. 5077694 - Distribution mailing system having a control database for storing mail
2. 5019991 - Certified weigher-short paid mail
3. 5008827 - Central postage data communication network
4. 4949272 - Flexible billing rate for mail communication systems