Average Co-Inventor Count = 9.00
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. National Institute for Land and Infrastructure Management, Ministry of Land, Infrastructure and Transportation (1 from 1 patent)
1 patent:
1. 6774815 - On-road facility fault information communication apparatus