Average Co-Inventor Count = 1.33
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 Aktiebolag (1 from 14 patents)
2. Kamewa Ab (1 from 6 patents)
2 patents:
1. 6935907 - Pod unit
2. 6165031 - Marine propulsion and steering unit