Average Co-Inventor Count = 1.50
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. Rolls-royce Corporation (1 from 5,879 patents)
2 patents:
1. 8480527 - Gearing arrangement
2. D591770 - Valve cover