Average Co-Inventor Count = 3.60
ph-index = 3
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. The Standard Register Company (3 from 224 patents)
3 patents:
1. 6554193 - Smart card with replaceable chip
2. 6375081 - Business form including smart card and smart card reader
3. 6193163 - Smart card with replaceable chip