Average Co-Inventor Count = 2.14
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. 6237288 - Roofing shingle bearing release material with identifying indicia
2. 5951809 - Method of providing identifying indicia to a roofing shingle
3. 5239802 - Adhesive arrangement for shingles and the like