Average Co-Inventor Count = 2.25
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. Pullman Incorporated (3 from 228 patents)
3 patents:
1. 4359003 - Railway car center filler
2. 4359002 - Railway car corner post
3. 4353314 - Box car corner post arrangement