Average Co-Inventor Count = 2.67
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. Pitney Bowes Inc. (1 from 2,979 patents)
2. Graphic Sciences, Inc. (1 from 7 patents)
2 patents:
1. 4489651 - Mailing machine having an envelope stripping device
2. 4149033 - Acoustic coupler assembly