Average Co-Inventor Count = 3.43
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. Filterwerk Mann + Hummel Gmbh (4 from 303 patents)
4 patents:
1. 6280492 - Flange for a device for separating an oil aerosol from air
2. 6256851 - Arrangement for shaping a helical tube
3. 5800584 - Oil separator
4. 5660607 - Apparatus for separating oil aerosols from air