Average Co-Inventor Count = 5.05
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. Mann+hummel Gmbh (1 from 1,011 patents)
2. Filterwerk Mann + Hummel Gmbh (1 from 303 patents)
2 patents:
1. 8501002 - Exchangeable filter insert
2. 6517710 - Structural assembly with an oil filter for an internal combustion engine