Average Co-Inventor Count = 2.08
ph-index = 13
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. (37 from 85 patents)
37 patents:
1. 12409872 - Coupler cross keys
2. 12168466 - Open top gondola railcars
3. 11820407 - Covered hopper car
4. 11702117 - Stub sill assemblies
5. 11142225 - Covered hopper car
6. 10562548 - Attachment of articulated connectors in multi-unit freight cars
7. 9944302 - Handbrake operating linkage for railroad tank car
8. 9694828 - Operating mechanism for tank car bottom valve
9. 9296398 - Protective structure for top of tank car
10. 8291592 - Method of lengthening a container well of a railcar
11. 7861659 - Lightweight hopper car with through center sill
12. 7806058 - Tank car stub sill attachment
13. 7757610 - Shortened container well
14. 7654206 - Container support casting for corner of container-carrying well car
15. 7607396 - Container car side sills