Average Co-Inventor Count = 1.00
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. Rolls-Royce Corporation (1 from 5,896 patents)
2. Bmw Rolls-Royce Gmbh (1 from 20 patents)
2 patents:
1. 5611661 - Gas turbine engine with bearing chambers and barrier air chambers
2. 4178129 - Gas turbine engine cooling system