Average Co-Inventor Count = 1.74
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. Pullman Incorporated (7 from 228 patents)
2. Thrall Car Manufacturing Company (4 from 64 patents)
11 patents:
1. 5088417 - Light weight center beam railroad cars with pinned connections
2. 4759294 - Railroad car with double stack container restraint system
3. 4754709 - Railroad car for containers having guides for the containers
4. 4718353 - Container carrying railroad car with walkways for access to containers
5. 4268968 - Railway wheel profilometer and diameter gage
6. 4222333 - Railway hopper car closure actuating mechanism
7. 4207020 - Hopper car door latching arrangment
8. 4136621 - Railway hopper car door locking mechanism
9. 3989288 - Door lock for railway car sliding doors
10. 3981524 - Anti-pilferage lock for box car doors
11. 3933384 - Anti-pilferage locking device