Average Co-Inventor Count = 4.00
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. Gas Research Institute (2 from 645 patents)
2 patents:
1. 5402667 - Monitoring of soil
2. 5105650 - Monitoring compaction of backfill