Average Co-Inventor Count = 3.79
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. L.b. Foster Rail Technologies, Corp. (4 from 18 patents)
2. Portec Rail Products, Inc. (3 from 29 patents)
3. Harrison, Harold Devillo (0 patent)
7 patents:
1. 11273853 - Top of rail resilient bar
2. 10220860 - Wayside friction management system
3. 9914465 - Top of rail resilient bar
4. 9352761 - Wayside friction management system
5. 7481400 - Railway wheel sensor
6. 7096997 - Trackside friction management digital control system
7. D495974 - Railroad track lubrication tank