Average Co-Inventor Count = 3.20
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. Sumitomo Light Metal Industries, Ltd. (2 from 140 patents)
2 patents:
1. 5449542 - Honeycomb curtain wall and a honeycomb panel for a honeycomb curtain wall
2. 4931340 - Honeycomb panel structure