Average Co-Inventor Count = 1.50
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. Jeumont Schneider Corporation (3 from 88 patents)
3 patents:
1. 4488238 - Selection stage of the AC signal of greater amplitude between two
2. 4442988 - Information transmission device through the rails between a railway
3. 4149690 - Positive-response transit detector for a given transit zone