Average Co-Inventor Count = 2.40
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. James River Corporation (2 from 109 patents)
2. Crown Zellerbach Corporation (2 from 107 patents)
4 patents:
1. 4951891 - Web slitter and groover system
2. 4897980 - Apparatus for forming a bulk package
3. 4499801 - Web slitting and grooving method
4. 4484500 - Web slitting and grooving system