Average Co-Inventor Count = 2.57
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. Sihi Industry Consult Gmbh (2 from 3 patents)
2. Sihi Gmbh & Co Kg (1 from 17 patents)
3 patents:
1. 5924855 - Screw compressor with cooling
2. 5904473 - Vacuum pump
3. 5767635 - Displacement machine with electronic motor synchronization