Average Co-Inventor Count = 1.31
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. Gunderson, Inc. (7 from 84 patents)
7 patents:
1. 12168466 - Open top gondola railcars
2. 12122431 - Asymmetric hopper cars
3. 11820407 - Covered hopper car
4. 10807615 - Covered hopper car
5. 10562545 - Covered hopper car with stiffened bulkheads
6. 7861659 - Lightweight hopper car with through center sill
7. 7856931 - Center sill for railroad freight car