Average Co-Inventor Count = 10.47
ph-index = 1
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. Korea Railroad Research Institute (1 from 49 patents)
2. Krri (1 from 1 patent)
2 patents:
1. 11787448 - Hypertube transport system
2. 11320070 - Tube infrastructure with vacuum pressure