Average Co-Inventor Count = 1.33
ph-index = 4
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 (1971) Limited (3 from 65 patents)
2. Rolls-Royce Corporation (1 from 5,887 patents)
4 patents:
1. 4413949 - Rotor blade for gas turbine engines
2. 4260326 - Blade for a gas turbine engine
3. 4229140 - Turbine blade
4. 4005575 - Differentially geared reversible fan for ducted fan gas turbine engines