Average Co-Inventor Count = 1.60
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. 4392844 - Method and apparatus for correcting stack lean in a zig-zag folded web
2. 3972520 - Apparatus for handling business forms