Average Co-Inventor Count = 4.00
ph-index = 1
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. Mitsubishi Heavy Industries Limited (1 from 4,633 patents)
1 patent:
1. 6254697 - Cast steel material for pressure vessels and method of making a pressure vessel by using same