Average Co-Inventor Count = 5.51
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. Northrop Grumman Systems Corporation (3 from 3,385 patents)
2. Northrop Corporation (1 from 319 patents)
4 patents:
1. D508013 - Unmanned air vehicle
2. D475340 - Aircraft
3. 6138950 - Aircraft engine air intake system
4. D342717 - Aircraft