Average Co-Inventor Count = 2.25
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. Parker-Hannifin Corporation (3 from 1,666 patents)
3 patents:
1. 7648565 - Filter element
2. 5645718 - Reversible filter element
3. 5362389 - Fuel filter assembly with reversible element