Average Co-Inventor Count = 2.00
ph-index = 3
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. Acf Industries, Incorporated (5 from 400 patents)
5 patents:
1. 5076173 - Lifting hook arrangement for railway tank car
2. 4392575 - Swivel assembly for end cock
3. 4281951 - Container pedestal supplemental lock
4. 4207822 - Hopper car outlet gate assembly
5. 4166520 - Protective elastomeric brake rod sealing boot