Average Co-Inventor Count = 3.20
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 (2 from 1,660 patents)
2. Parker-hannifan Plc (1 from 10 patents)
3. Parker Hennifin Corporation (1 from 1 patent)
4 patents:
1. 7213616 - Diversion valve fluid coupling
2. 6969093 - Fluid coupling plug
3. 6749231 - Fluid coupling plug
4. 6450545 - Fluid coupling plug