Average Co-Inventor Count = 2.40
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. Georg Robel Gmbh & Co. (1 from 5 patents)
2. Franz Plasser Bahnbaumaschinen-industrieges M.b.h. (1 from 4 patents)
2 patents:
1. 5575709 - Rail grinding machine for grinding rails of a track
2. 5520497 - Rail loading train for transporting as well as loading and unloading