Average Co-Inventor Count = 2.00
ph-index = 2
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. Amsted Rail Company, Inc. (1 from 139 patents)
2. Ellcon National, Inc. (1 from 23 patents)
2 patents:
1. D876299 - Vented brake cylinder
2. 5361876 - Truck mounted brake apparatus