Average Co-Inventor Count = 4.00
ph-index = 4
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. Building Materials Investment Corporation (4 from 284 patents)
4 patents:
1. 8397460 - Roofing shingle
2. 7805905 - Roofing shingle
3. D554275 - Roof shingle
4. D504962 - Roofing shingle