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. New York Air Brake Corporation (3 from 291 patents)
3 patents:
1. 6206483 - Empty-load device with brake cylinder test port
2. 6138715 - One-piece ballkey
3. 5478142 - Single sided control valve and pipe bracket arrangement