Average Co-Inventor Count = 2.53
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. Union Tank Car Company (8 from 29 patents)
8 patents:
1. 10464580 - Railroad tank car manway assembly
2. 10029705 - Railroad tank car manway assembly
3. 9828006 - Disengaging handle assembly for a bottom outlet valve
4. 9746873 - Disengaging handle assembly for a bottom outlet valve
5. 9714719 - Bottom outlet valve removable independent steam jacket
6. 9499178 - Railroad tank car manway assembly
7. 9260118 - Railroad tank car manway assembly
8. 8899161 - Railroad tank car manway assembly