Average Co-Inventor Count = 7.00
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. Building Materials Investment Corporation (1 from 284 patents)
2. Elk Premium Building Products, Inc. (1 from 25 patents)
2 patents:
1. 9212487 - Enhanced single layer roofing material
2. 9021760 - Laminated roofing shingle system and shingles for use therein