Average Co-Inventor Count = 2.00
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. J. Muller International (2 from 6 patents)
2 patents:
1. 5437072 - Rapid transit viaduct with post-tensioning cable system
2. 5386782 - Rapid transit viaduct system with central platform station