Average Co-Inventor Count = 1.80
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. Salzgitter Maschinenbau Gmbh (2 from 6 patents)
2. Saltzgitter Maschinenbau Gmbh (1 from 2 patents)
3 patents:
1. 4974506 - Spindle press
2. 4941404 - Screw press
3. 4901636 - Spindle press