Average Co-Inventor Count = 3.00
ph-index = 1
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. Eisenwerk-gesellschaft Maximilianshutte (1 from 2 patents)
2. Siemens Aktiengesellschaft (30,040 patents)
3. Siemens Mobility Gmbh (436 patents)
1 patent:
1. 4262516 - Pierced metal tube blanks and methods of making such blanks