Average Co-Inventor Count = 4.00
ph-index = 1
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. Rolls-royce North American Technologies Inc. (1 from 920 patents)
1 patent:
1. 12180894 - Electric starter verification during gas-turbine engine barring