Average Co-Inventor Count = 1.33
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. Sa Martin (2 from 27 patents)
2 patents:
1. 4932298 - Circular tool arrangement allowing quick changing of tools
2. 4506875 - Suction-box feed device