Average Co-Inventor Count = 3.75
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. Gebr. Pfeiffer Ag (2 from 6 patents)
2. Gebr. Pfeiffer Se (2 from 4 patents)
4 patents:
1. 11007533 - Material-bed roller mill
2. 10245591 - Bearing element suitable for supporting a grinding table in a roller mill
3. 8172168 - Roller grinding mill
4. 7926754 - Safety systems for roller mills