Average Co-Inventor Count = 3.00
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. Northrop Grumman Systems Corporation (2 from 3,387 patents)
2 patents:
1. 5923058 - Aluminum gallium nitride heterojunction bipolar transistor
2. 5641975 - Aluminum gallium nitride based heterojunction bipolar transistor