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. American Railcar Industries, Inc. (2 from 14 patents)
2 patents:
1. 6875942 - Methods and systems for fabricating spiral welded cylinders
2. 6717093 - Methods and systems for fabricating spiral welded cylinders