Average Co-Inventor Count = 3.00
ph-index = 3
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. Elkcorp (3 from 14 patents)
3 patents:
1. 8030229 - Composite material
2. 8017531 - Composite material
3. 7563733 - Composite material