Average Co-Inventor Count = 1.43
ph-index = 4
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 Gmbh & Co Kg (5 from 17 patents)
5 patents:
1. 5489195 - Liquid ring pump having a sheet metal valve plate
2. 4710105 - Liquid-ring compressor unit
3. 4685865 - Liquid ring compressor having openings in housing for emptying liquid
4. 4634348 - Liquid ring compressor having a passageway in discharge port for
5. 4632649 - Gas jet pump