Average Co-Inventor Count = 1.64
ph-index = 6
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. Thrall Car Manufacturing Company (6 from 64 patents)
6 patents:
1. 4936227 - End door for rail car
2. 4836726 - Vehicle wheel chock for securing vehicles during transport
3. 4730562 - Vehicle transporting railroad car with brace bays
4. 4677918 - Railroad car with retractable closure track held down by bridge plate
5. 4667604 - Autorack railroad car improved bridge plate support structure
6. 4543887 - Center beam railroad freight car