Average Co-Inventor Count = 2.00
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. Parker-hannifin Corporation (2 from 1,661 patents)
2 patents:
1. 5564177 - Method of making captive O-ring face seal
2. 5490680 - Captive O-ring face seal