Average Co-Inventor Count = 3.27
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. Certainteed Corporation (3 from 936 patents)
3 patents:
1. 8695289 - Photovoltaic roofing elements, photovoltaic roofing systems, methods and kits
2. 8592025 - Shingle with reinforcement layer
3. 8424681 - Package box for specialty shingles