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. Other (1 from 832,718 patents)
2. Axt, Inc. (1 from 19 patents)
3. Lumei Optoelectronics Corporation (3 patents)
2 patents:
1. 6630695 - InGaN/AlGaN/GaN multilayer buffer for growth of GaN on sapphire
2. 6495867 - InGaN/AlGaN/GaN multilayer buffer for growth of GaN on sapphire