Average Co-Inventor Count = 1.00
ph-index = NA
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. Daihen Corporation (2 from 342 patents)
2 patents:
1. D1106292 - Welding torch
2. D1104092 - Welding torch