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. Franz Plasser Bahnbaumaschinen-industrie-gesellschaft Mbh (2 from 395 patents)
2 patents:
1. 5052132 - Ballast distributing and planing machine
2. 5046270 - Mobile ballast clearing and planing machine