Average Co-Inventor Count = 3.16
ph-index = 3
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. Messer Griesheim Gmbh (3 from 218 patents)
3 patents:
1. 4305573 - Flame cutting machine control system
2. 4172587 - Flame cutting machine
3. 4143929 - Current collector