Average Co-Inventor Count = 3.00
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. Progress Rail Services Corporation (3 from 119 patents)
2. General Electric Capital Corporation (1 from 54 patents)
4 patents:
1. 7793891 - Railway diamond crossing
2. 7472837 - System, method, and apparatus for railroad guide rail support
3. 7467748 - System, method, and apparatus for railroad guide rail support
4. 6971610 - Railway diamond wedge crossing with reversible beam castings