Average Co-Inventor Count = 1.83
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. Other (2 from 832,680 patents)
2. L.b. Foster Rail Technologies, Corp. (2 from 18 patents)
3. Harrison, Harold Devillo (0 patent)
4 patents:
1. 10220860 - Wayside friction management system
2. 9352761 - Wayside friction management system
3. 9222904 - Method and apparatus for detecting track failure
4. 7869909 - Stress monitoring system for railways