Average Co-Inventor Count = 1.69
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. Alstom Transport Technologies (3 from 234 patents)
2. Other (2 from 832,680 patents)
5 patents:
1. 11724724 - System for controlling vital wayside devices of a railway network, and vital switch for such vital devices
2. 10988151 - System and method for controlling a level crossing of a railway track
3. 10533288 - Railroad track wire connection and corresponding railroad installation
4. 5172839 - Golf tee holder
5. 4993613 - Golf tee holder