Average Co-Inventor Count = 2.29
ph-index = 7
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. Gunderson, Inc. (6 from 84 patents)
2. Fmc Corporation (1 from 2,509 patents)
3. Burlington Northern Railroad (1 from 4 patents)
8 patents:
1. 5170718 - Railroad freight car with well for stacked cargo containers
2. 5054403 - Railroad freight car with well for stacked cargo containers
3. 4930426 - Device for changing the effective width of a container well of a freight
4. 4893567 - Railroad freight car with well for stacked cargo containers
5. 4893717 - Trailer hitch for use with a railroad car
6. 4756256 - Aerodynamic drag reduction for railcars
7. 4624188 - Stack supporting container car
8. 4331083 - Drop center gondola car