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. General Electric Company (3 from 51,873 patents)
3 patents:
1. 7257471 - Communications device for remote control of rail track switches in a train yard
2. 7177732 - Automatic coupling of locomotive to railcars
3. 7076343 - Portable communications device integrating remote control of rail track switches and movement of a locomotive in a train yard