Average Co-Inventor Count = 2.40
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. Paper Converting Machine Company (2 from 189 patents)
2 patents:
1. 5421536 - Surface winder with recycled mandrels and method
2. 5402960 - Coreless surface winder and method