Average Co-Inventor Count = 4.17
ph-index = 3
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. Union Pacific Railroad Company (4 from 29 patents)
2. L.b. Foster Rail Technologies, Corp. (1 from 19 patents)
3. Union Pacific Railroad (1 from 1 patent)
5 patents:
1. 9592841 - Cumulative inertial tractive effort
2. 7930979 - Mounting of drag reducing devices for stacked intermodal rail cars
3. 7841280 - Drag reducing devices for stacked intermodal rail cars
4. 7827918 - Mounting of drag reducing devices for stacked intermodal rail cars
5. 7784409 - Drag reducing devices for stacked intermodal rail cars