Average Co-Inventor Count = 3.00
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. Eaton Corporation (2 from 5,989 patents)
2 patents:
1. 4728374 - Solution heat treated engine poppet valves
2. 4547229 - Solution heat treating of engine poppet valves